Answer:
Moshe the Beadle.
Explanation:
Kabbalah is the study of the mystical interpretation of the Bible, the school of thought, and the study and teaching related to this. It is a part of the Jewish tradition to learn or be introduced to this study for them to become "god-fearing" men.
In his memoir "Night", Eliezer Wiesel mentioned how he wanted to learn more and be taught. But when he asked his father to help him, he refused, saying that <em>"He wanted to drive the idea of studying Kabbalah from my mind."</em> Then, he found Moishe the Beadle, who became <em>"a master"</em>, teaching him <em>"for hours on end about the Kabbalah's revelations and its mysteries"</em>.
Thus, <u>Moshe the Beadle introduces, teaches, and helps Eliezer about the Kabbalah</u>.
