Likutei Moharan 3:4/ליקוטי מוהר"ן ג׳:ד׳

14. With this, it is possible to reconcile the juxtaposition in the Mishnah: Get yourself a rabbi, acquire for yourself a companion, and judge everyone favorably (Avot 1:6).

2By listening to song in the manner explained above <and becoming absorbed in it—so that when another sings joyously, he, too, rejoices in God; and when another sings with spiritual inspiration, he, too, is inspired and contemplates repentance—he then> rectifies the concept of building up Malkhut, <namely, Netzach and Hod, as mentioned>.

3This is, “Get yourself a rabbi”—i.e., <rectify> the aspect of Malkhut. It is accomplished by “K’NeH (acquire) for yourself a companion.” That is, by means of the KaNeH (windpipe), via which the voice emerges.

4This joins the two cherubs so that they are face to face, “as the embrace of a man and his consort” (1 Kings 7:36) when the Jewish people perform the will of the Holy One (Bava Batra 99a).

5But, then, when a person rectifies his aspect of Malkhut, he is able to rule over whatever he chooses. He can bring death to one person, or give life to another. The world would then be ravaged. To this [the Mishnah] says, “and judge everyone favorably.” It is necessary to judge each person favorably, for the Holy One has no desire in the world’s destruction: “He did not create it a wasteland, but formed it to be inhabited” (Isaiah 45:18).