Likutei Moharan 74:9/ליקוטי מוהר"ן ע״ד:ט׳

19. {I did not hear this lesson directly from the Rebbe's holy mouth. As mentioned above, it is leshon hachaveirim. One who studies it will see that the language is very confused. Much is missing, and even that which has been recorded is lacking order. Therefore, I decided to explain this somewhat, according to what I was able to understand from the words recorded here. As follows:}

2“Rumah Al Hashamayim Elohim (You are Exalted, O Lord, above the heavens;) Your glory is over all the earth.” (Psalms 57:6) Each person has to heal his soul; in other words, he must elevate it to its root. This is accomplished by laboring in the study of Torah until one succeeds in knowing and understanding it.