“Give ear, heavens, and I will speak, and let the earth hear the words of my mouth.” (Devarim 31:2) In Likutei Moharan, Rebbe Nachman of Breslov teaches that the mark of a great tzaddik is his ability to relate to two different kinds of Jews in two very different ways. To a Jew who thinks he has already reached great levels of Torah and avodah, the tzaddik reveals, by showing him the true greatness of Hashem and the awesome depth…