How can you know if you can lift this place up, or if it will pull you down?

Because we have a Torah, and the Torah is our guide. And we have sages of Torah, and they can instruct us. If the Torah says you must go, you are capable of healing that place. If the Torah says you cannot go, it will be healed somehow else.

No matter how great an opportunity it may seem, no matter how fantastic the immediate rewards may appear, you will not redeem the sparks, but only give more nurture to the darkness that holds them captive.

Second night of Pesach, 1958 (5718)