 In 1973, Rabbi Refoel Dovid Auerbach of Shaar Hashamayim Yeshiva asked Rabbi Eisenbach to assume the mantle of rosh yeshiva after the passing of Rabbi Aharon Slotkin.Rabbi Eisenbach's proficiency in kabbalah was well known.He knew all the writings of the Arizal and the siddur of the Rashash by heart, and was an expert in davening with the "kavannot" (mystical intentions) of these kabbalistic masters.