Likutei Moharan 282:6/ליקוטי מוהר"ן רפ״ב:ו׳

16. However, to know all this— i.e., to know of each and every tzaddik, which are the young children who relate to him and how much they receive from him, and to know all the aspects involved in this and the generations that will come from them to the very end—know, one who can make the aforementioned melodies can know all this.

2And this is the deeper meaning of what our Sages, of blessed memory, said in the Mishnah: In truth, they said, the chazan sees where the young children are reading (Shabbat 11a). “The chazan”—i.e., one who can make the aforementioned melodies—he can be the cantor, the messenger of the people, leader of the communal prayers, as explained above. He sees and knows “where the young children are reading”—i.e., from which tzaddik they receive the breath of their mouths, through whom they read and enter into the study of Torah, as explained above.

3This completes Volume One.

4Praise to God, the Last and the First.

5The following additional lessons are new collections that I gathered from fellow chassidim, that which I heard from them verbally and that which they had recorded, which were not included in the first edition.