This letter was composed as a response to a request from Rabbi Menachem Zev Greenglass, one of the active members of the Lubavitch community in Montreal, to explain — using supports from Nigleh (the revealed dimension of Torah law) — the importance of studying Mishnayos by heart.1 This letter was later reprinted in Kovetz Lubavitch, Vol. IV, with additions which are included in this text.2

[14 Shvat, 5704]

In response to your question [concerning the importance of studying Mishnayos by heart] and in order to highlight again the great importance and the nature [of this campaign], I am citing — with certain additions — concepts which I already wrote to certain individuals who are members of the Society for the Study of Mishnayos by Heart which was established by Machne Israel:

Based on our Sages’ statement (Sifri, Parshas Naso; Bamidbar Rabbah, ch. 7): “Encouragement should be given to the inspired,” I have come to speak again of participation in [the campaign] to review the entire six orders of the Mishnah by heart. [The intent is that] the entire society will together complete the study of all the six orders of the Mishnah by heart over the course of a year, and review [those mishnayos] whenever they have spare time, e.g., while on a journey or while walking in the street, while sitting in one’s office or store, provided that the place is fit to speak words of Torah.3 As my revered father-in-law, the Rebbe shlita stated when he founded this society:

[This is] a time when we must purify the air.... The purification of the air comes through the letters of the Torah.... It is very important that Jews study Mishnayos by heart ... and review these Mishnayos at all times in every place.... This is not restricted to any particular group or approach.... Instead, it is a matter of general importance which affects the Jewish people as a whole and which serves as a protective measure.

Similarly, at the time of the first division [of the Mishnayos] (Isru Chag Shavuos, 5702), he said:

The Mishnah or the Mishnayos which we will review wherever one finds himself, regardless of the nature of the place where one is located, will illumine the connection between the Jewish people and the Holy One, blessed be He.

Similarly, at the time of the second division [of the Mishnayos] (Sivan 17, 5703), he said:

Rav Bana’ah stated: ‘A person should always invest himself in [the study of] Mishnayos. For if he knocks, they will open [portals] for him. If [he seeks knowledge of] the Talmud, [they will lead him to] the Talmud. If [he seeks knowledge of] the Aggadah, [they will lead him to] the Aggadah’ (Vayikra Rabbah, ch. 21[:5]).”

Through this study, a person will receive direction in [the study of] both Torah law and Aggadah. For the word Mishnah (vban) shares the same letters as the word neshamah (vnab),4 meaning “soul.”

And at the time of the third division [of the Mishnayos] (Sivan 27, 5704), he said:

Every member of the society should take it upon himself to study Mishnayos by heart.... Do not consider this as a light matter. Every mishnah studied by heart contains an entire world [together with] its components.

* * *

To explain the concept of studying Mishnayos by heart according to Nigleh, based on the teachings of our Sages, I will [delineate] in order the various different [conceptual] elements involved. Among them:

I) The Importance of the Air and Its Purification:

According to the will of He who performs wonders and who connects the body to the soul, the existence of the body and its connection with the soul which enables a person to live is dependent on two factors.5 1) the blood which is produced by [the digestion of] the food and drink which the person has ingested, 2) the air which a person breathes.6 These are the function of the [two organs,] the windpipe and the esophagus, which serves as signs [that when slit, the ritual slaughter of an animal is acceptable].7

Although both of these — air, and food and drink — are necessary for a person’s life, there is a distinction between them. [We] eat and drink only at specific times. As our Sages commented (Yoma 75b): “At the outset, the Jewish people were like chickens pecking at the ground until Moshe came and established times for meals.” Similarly, the Rambam states (Mishneh Torah, Hilchos De’os, the beginning of ch. 4): “A person should not eat unless he is hungry, nor should he drink unless he is thirsty.”

Breathing, in contrast, must be constant (i.e., this is the ordinary pattern). Thus our Sages said that a person can live seven days without eating or drinking8 (Rambam, Mishneh Torah, Hilchos Shvuos 5:20). If, however, he does not breathe for even a short time, he will die. (See the commentaries to the Shulchan Aruch, Even HaEzer 17:32; the Responsa of the Tzemach Tzedek, Even HaEzer, Responsa 68-70, and the sources cited by S’dei Chemed, Klallim, Os Chaf, sec. 108, which define the length of this short time.)

As a logical consequence, it is understood that since food and drink maintain the body and its connection with the soul, the food and drink which a person ingests must be appropriate for this function. Moreover, the quality of the food one eats affects the quality of the body in general, and its connection with the soul in particular. As our Sages comment (Berachos 44b): “[Eating] any fresh vegetable causes a person’s face to lose color. [Eating] an entity before it grows to full size makes one small. [Eating] a being [all at once9 ] restores the soul, and [eating] any [organ] close to [an animal’s source of] life restores the soul.” And similarly, our Sages have explained (see the Ramban’s Commentary to the Torah, Vayikra 11:11) that carnivorous animals are forbidden to be eaten because this ingrains cruelty in a person’s heart.

Moreover, there are times when a person’s speech or thoughts can cause a food that would not otherwise be forbidden, e.g., a person who slaughters an animal in worship of the mountains (Chulin 39b), to bring about undesirable traits in a person who eats it. For example, [while she was pregnant with him,] the mother of Elisha Acher10 partook of food that was being offered to the worship of a false deity and this caused her son to adopt an undesirable lifestyle (Rus Rabbah 3:13).

We cannot say that Acher’s conduct came as a punishment [for his mother’s deed], and not as a natural result [of the food’s spiritual nature], for his mother did not perform a transgression when partaking of the food. She was pregnant at the time and had smelled the aroma [of the food]. [In such an instance,] she should be given [the food] and [allowed] to partake of it (Yoma 82a);11 indeed, it is a mitzvah to do so.12

It is difficult to say that [the offering] is considered an auxiliary of the worship of false divinities in which case the principle “die, rather than transgress” would apply. Also, the wording “they gave her from that type [of food] and she ate it,” implies that it was necessary that they give her the food, [i.e., she was incapable of eating herself].

Therefore we are forced to say that even if there is an element of punishment involved, there is also a natural process of cause and effect. Since the food is forbidden, it brings about certain tendencies in a person who partakes of it. Nevertheless, in a situation where there is a danger to a person’s life, it is a mitzvah for him to partake of the food, even though doing so will cause undesirable character traits.

The food has not undergone any change. [Instead,] its nature and its qualities remain. For this person, however, it has become permitted to eat. Moreover, even with regard to that particular person, the threat to life takes precedence over the prohibition; it does not, however, countermand it. (See Rambam, Mishnah Torah, Hilchos Shabbos, the beginning of ch. 2 and commentaries. The comments of the Tzafnas Paneach — by the Rogatchover Gaon — on the Rambam’s statements there require explanation. This is not the place for the discussion of that issue.)13

[Causing oneself this minor dimension of harm by eating the prohibited food] can be compared to surgically removing a limb to save the body as a whole.14

In general, if the food is forbidden, a person’s soul is repulsed by it, and the fact that he ate it is not considered eating. This applies even if he ate it without knowing, as the Rambam15 rules (Mishneh Torah, Hilchos Terumos 10:10, based on the Talmud Yerushalmi, Terumos 6:2).

If the above applies with regard to eating and drinking, certainly, and how much more so, does it apply [to the air]. The air must be clean and pure, both physically and spiritually, so that a person can be healthy and fully developed in both a material and spiritual sense. In this vein, our Sages gave us several examples, stating (Bava Basra 158b): “The air of Eretz Yisrael makes one wise,” and (Sanhedrin 109a): “The air [above the site] of the Tower [of Bavel] causes forgetfulness.”

With regard to the effect of the air on the body and its health, Bereishis Rabbah (ch. 34[:15]) states: “What is the air of that place like?... When an infant is born, we must mix herbs and smear his head with them so that the mosquitoes do not eat him.” And the Zohar (Vol. III, p. 10a) states: “The created beings differ in their appearance because of the difference in the air, each one according to its place.” [It is, however, true] that in these two sources the term avira translated as “air” could also be translated as “climate.” As we find the term avir used with that intent in the statement (Bereishis Rabbah, loc. cit.): “There is a covenant established with the aviros,” where the intent is “climate.” In the Talmud, however, as of yet, I have not found the word avir used with the meaning “climate.”

II) The Purification of the Air Through the Letters of the Torah:

A person has an effect on the world around him through deed, speech, and thought. In the realm of halachah, we find several matters in which thought has an effect on an entity which is outside the person who is thinking.16

Speech is unique in that it is the air which carries it from the speaker to the listener. Thus it is understood that positive speech creates a positive impression in the air and undesirable speech creates a negative impression. The Rambam, in his commentary to the Mishnah, elaborates on the different types of speech in his explanation of the teaching (the conclusion of ch. 1 of Avos): “Whoever speaks excessively brings about sin.” From his statements, it is explained — and indeed, it is obviously apparent — that the types of speech which are loathsome or forbidden are found minimally in a synagogue or a house of study, and are predominantly found in the marketplaces, streets, and the like. Consequently, the need for correcting and purifying the air is greater outside the house of study. At times, however, even the air in a synagogue and house of study needs refinement.

It is thus understood that the purification of the air must be accomplished by an agent that affects the air, i.e., through positive speech which makes an impression within the air; [to borrow our Sages’ expression:]17 “air expels air.”

This is [accomplished] through speaking words of Torah. Concerning [such speech], our Sages say (Rambam, Mishneh Torah, the conclusion of Hilchos Kerias Shema, based on Berachos 22a):

The words of the Torah do not contract impurity. Instead, they remain in a state of purity forever, as [implied by the verse:]18 “‘Are not My words as fire?’ declares G‑d.” Just as fire does not contract impurity; so, too, the words of the Torah do not contract impurity.”

[In this vein,] note also our Sages’ statement (Sanhedrin 39a): “The essence of immersion (— which serves to purify an impure person —) is in fire.”

* * *

III) The Emphasis on Reviewing the Words of Torah By Heart:

In a synagogue and a house of study, [a person] can recite the words of the Torah by heart or from a text. In either instance, however, they must be pronounced verbally, as our Sages comment (Eruvin 54a): “Open your mouth and read [the words of the Written Law]. Open your mouth and recite [the words of the Oral Law].... ‘They are life to those who find them....’19 Do not read ‘to those who find them,’ read ‘to those who utter them,’ i.e., to those who utter them verbally.”

When outside, in the street, and by and large, also in one’s place of business – the places where the purification of the air is most necessary, as above – the environment is not one of repose, nor are there texts available so that one can study from them. Hence, each and every person must have letters of Torah prepared, known by heart, so that he can repeat them at all times, and in every place where it is permitted to recite the words of the Torah.

Our Sages comment (Gittin 60b): “Words that are written20 you are not allowed to recite by heart.” The Rambam does not quote this restriction, and there are others who maintain that the prohibition applies only when one is seeking to fulfill an obligation on behalf of others. {See Rambam, Mishneh Torah, Hilchos Klei HaMikdash 6:7; the Babylonian Talmud, Yoma 70a (and [the corresponding passages in] the Talmud Yerushalmi); Tosafos Yeshenim to Yoma, op. cit.; Taanis 28a; Tosafos entry, Devarim, Tamurah 14b. This subject is spoken about at length in the Tur, the Shulchan Aruch, and commentaries (Orach Chayim, ch. 49). The Sdei Chemed, Klallim, Maareches Dalet, sec. 44, and the Pe’as HaSadeh, Maareches Dalet, sec. 4, mention the opinions of the later authorities concerning this matter.}

The Shulchan Aruch (Orach Chayim, ch. 49), however, rules that unless the passage is one which everyone knows by heart [— e.g., the Shema —], it is forbidden to speak [words from the Written Law] by heart.

Therefore, [it is only] when one studies words of the Oral Law by heart [that] all authorities agree that there is no difficulty involved.

IV) The Emphasis on Reviewing Mishnayos By Heart:

In general, with regard to the Oral Law, the matter of primary importance is the grasp and the comprehension of the halachah. (One must, however, verbally pronounce the words one studies as above.) If a person reads [the words of the Oral Law] and does not understand what he is reading, it is not considered study (Magen Avraham, Orach Chayim 50:2). With regard to the Written Law, in contrast, a common person is required to recite the blessings of the Torah, even if he does not understand the meaning of the words he is saying.

Within the Talmud itself, there is a difference between the Mishnah and the Rabbinic works that followed it. As the Rambam writes in his Introduction to his Commentary to the Mishnah:

The words of the Mishnah were concise, including within them many concepts.... The Beraisos21 did not have the precision of the words of the Mishnah, neither in the articulation of the concepts nor in the conciseness of the wording.... All [the scholars] who followed did not invest their heart and their energy into anything but meditation on the words of the Mishnah. Note the further explanations [of these concepts] there.

From this, we can appreciate that in the study of the Mishnah, precise study of its words and careful attention to its letters are of fundamental importance (except that, as mentioned above in the name of the Magen Avraham, comprehension is also required). For [these words] contain all the concepts later enumerated in the Beraisos. As Ilfa states (Taanis 21a), everything that was taught by Rabbi Chiyya and Rabbi Oshia can be derived from the Mishnah. The Talmud Yerushalmi (Pe’ah 2:4) goes further and states that many laws were communicated to Moshe at Sinai and they are all embedded in the Mishnah.

The second portion of the Talmud is called — [when speaking] in general terms — an explanation of the Mishnah (Mavo HaTalmud by R. Shmuel HaNagid), i.e., its fundamental [purpose] is to understand and explain the motivating principles [for the Mishnah].

Therefore, it is clear that reviewing by heart — which as explained above brings about the purification of the air through the recitation of the letters of the Torah — is more relevant to the Mishnah than to the Gemara. The distinction between them is that although both the vocalization [of the words] and the comprehension of them is necessary for both, [with regard to the Mishnah,] the vocalization [is of primary importance]. [With regard to the Gemara, by contrast,] the comprehension [is most important].

V. The Importance of the Above in the Present Time:

In this era of ikvesa deMeshicha, [when Mashiach’s approaching footsteps can be heard,] and the end of our exile is drawing near, [the study of] the Mishnah takes on additional importance, as our Sages commented (Vayikra Rabbah 7:3): “The exiles will not be gathered in through any merit other than [the study of] the Mishnayos.

And our Sages said (the AriZal, as quoted by the Midrash Talpios, anaf ephod):

When a person is being sentenced to Gehinnom, he calls to each of the tribes to save him and none of them respond.

When he calls to Asher, he answers him: “Did you ever study Mishnah?”22 If [the person] responds affirmatively, [Asher] immediately takes him out of Gehinnom in the merit of the Mishnah.

There is a connection between these two matters — Gehin­nom and exile — for one replaces the other. As our Sages commented (Bereishis Rabbah 44:21): [The Holy One, blessed be He, told Avraham:] “Which do you desire — for your descen­dants to descend to Gehinnom or [to be exiled among] the nations?” Similar statements are also found in the Zohar, Vol. II, p. 83b. We can appreciate that an entity [— i.e., the Mish­nah, as above] that can save from one can also save from the other, as the Zohar, op. cit., states.

To explain in brief, according to the teachings of Nigleh,23 why the ingathering of the exiles will come about through the study of the Mishnah: It is clear that for the ingathering of the exiles to take place, the reasons which led to the exile must be removed and corrected. Our Sages (Yoma 9b) revealed to us that the destruction of the Second Beis HaMikdash came as a result of the sin of unwarranted hatred. ([The punishment came] “measure for measure.” The Jews were “dispersed and scattered among the nations”24 because they were divided among themselves.)

Moreover, the redemption from the Babylonian exile was not complete (Sotah 36a, see Rashi, entry liaasos). Hence, we are forced to say that the reason which led to the destruction of the First Beis HaMikdash was also not entirely removed and atoned for. The reason for that destruction is that the Jews did not recite the blessings before studying the Torah. As Rabbeinu Nissim explains (Nedarim 81a), although they were occupied with Torah study continuously, the Holy One, blessed be He, who knows the depths of a man’s heart, understood that the Torah was not important in their eyes, and that they did not occupy themselves in its study lishmah, for its own sake. [This is the intent of] the prophet’s words of criticism:25 “They did not proceed in it,” according to its intent and for its sake. Because of this “the land was devastated,”26 the Beis HaMikdash was destroyed.

Therefore, in order that the Jewish people merit the ingathering of the exiles, [two objectives] must be [achieved]:

a) they must “bless the Torah,” i.e., [establish] the importance of the Torah in their eyes, and

b) create unity amidst separation, the opposite of the unwarranted hatred which spawned separation where there was unity.

Both of these purposes are achieved through the study of the Mishnah.

[To explain:] Of the three disciplines of Torah study: Mikra (Scripture), Mishnah, and Gemara, [these two concepts receive the greatest emphasis through the study of the Mishnah]. With regard to the discipline of Mikra, the concept of unity is not a new development, because there is far less potential for division. For [this discipline] does not involve explicit laws and directives governing our conduct. And even with regard to understanding, as mentioned above, with regard to the study of the Written Law, this is not of fundamental importance. Therefore even a person who does not understand [what he is studying] recites the blessings for Torah study.

Similarly, the recitation of the blessings of the Torah and the awareness of G‑d [it creates] is not as great a new development with regard to this discipline of Torah study, for the Torah frequently states: “And G‑d said...,” “And G‑d spoke....”27

Moreover, the relevance to the discipline is minimized in this context, because — as our Sages emphasize in the Midrash (Shmos Rabbah 47:1) — in contrast to the Oral Law, this discipline of the Torah does not create a distinction between the Jews and the other peoples.28 And [within the Jewish people as well,] even the Sadducees acknowledge the Written Law. [Their objections are to] the Oral Law.

Similarly, at first glance, the concept of unity is not evident in the study of the Gemara. For it is characterized by a dialectic analysis of the Mishnah and the understanding of its motivating principles, and each person digs deeper and understands according to his own mind, ability to comprehend, and nature of understanding. Indeed, [our Sages emphasize] (Kiddushin 30b) that at the outset, two Torah scholars will appear as enemies and it is only at the end, that the love [between them will surface]. (This comes about through the establishment of a halachic ruling which is universally accepted. Such a ruling is included in the discipline of Mishnah, as the Alter Rebbe writes in his Shulchan Aruch (Hilchos Talmud Torah 2:1).

Similarly, [the study of the Gemara does not highlight the Torah’s connection to G‑d], because it involves the comprehension of concepts with human logic, not only because they have been received in [a chain of] tradition.

In these two particulars, the study of the Mishnah differs. It involves the study of halachic directives to be actually applied. It requires comprehension {— i.e., even the opinions, the Rambam and the Riv, who maintain that the knowledge of the motivating principles [for the halachah] is not necessary, as the Alter Rebbe explains in his Kuntres Acharon (Hilchos Talmud Torah, op. cit.), [agree that one must understand the final decision rendered]}. And yet, that decision is universally accepted; there is no dispute concerning it. For this reason, [if a judge renders a decision that involves] an error in a point of Mishnah, [i.e., a ruling that has been accepted as Halachah,] his judgment is rescinded (Sanhedrin 33a).29 [This highlights the theme of unity.]

[Similarly, it also points to the second theme, the emphasis of the G‑dly nature of the Torah.] For the very fact that although their thought processes are different, everyone accepts one law indicates that it is G‑d who gave us His Torah — one Torah for Israel, who are one nation.

[The theme of the G‑dly nature of the Torah also receives] particular emphasis [with regard to the study of the Mishnah]. For with regard to the Sages of the Mishnah, it is said: “The fundamental halachic rulings they issued did not depend on their own process of intellectual determination, but rather on [the tradition] which they received [teacher] to [disciple, extending] back to Moshe (the Alter Rebbe, Torah Or, the maamar entitled ViEileh Shmos, ch. 6).

* * *

May G‑d grant you the merit of witnessing, speedily and in our days, the ingathering of our exiles by Mashiach, of whom it is said:30 “And the spirit31 of G‑d will rest upon him..., the spirit... and he will be imbued with the spirit of the fear of G‑d....” And he will — with his sense of smell — detect the worthy (Sanhedrin 93b).