The 19th of Tevet is the yahrtzeit (anniversary of the passing) of American Jewish philanthropist Judah Touro (1775-1854).
Link: Judah Touro: Philantropist Par Excellence
R. Aryeh Leib Heller was the rabbi of the city of Stryi, in what is now Western Ukraine. His works—Ketzot Hachoshen, Avnei Milu’im, and Shav Shemateta—are known for their clear, logical analysis of Talmudic texts and ideas, and are staples that are studied in yeshivas throughout the world.
G‑d desires to have a presence in this world, and in each mitzvah we do, however it is done, He is there.
G‑d desires that His light shine in this world, and in every word of divine wisdom and every heartfelt prayer, His light shines.
G‑d desires yet more—that He be found here in all His essence, that which can neither be spoken nor kept silent, neither of heaven nor of earth, neither of being nor of not-being—that which transcends all of these and from which all extends.
And that is how He is found in a simple, physical deed that shines brightly with divine light.