Likutei Moharan 54:12/ליקוטי מוהר"ן נ״ד:י״ב

112. Addendum relating to the lesson:

2Who has gathered the ruach in his palms? Who has wrapped the waters in a robe?… This is the explanation of “He causes His ruach to blow and the waters to flow” (Psalms 147:18). By means of “He causes His ruach to blow”—this that he gathers and collects the ruach in his hand—as a result, “the waters flow.” This corresponds to “Who has wrapped the waters,” which is the aspect of the heart, corresponding to “Pour out your heart like water,” as explained above. See there.