Likutei Moharan 21:16/ליקוטי מוהר"ן כ״א:ט״ז

116. Now, perfection of knowledge is when the transcendent intellects become immanent intellects. Then a person is saved from all suffering. For example: When a person scouts and lays a trap for his neighbor in order to kill him, it is necessary [for the neighbor] to disguise himself so that he is not recognized. As is it written (Job 14:20), “You change his appearance, and send him away”—changing the appearance through different garments enables him to be free of him.

2The same is true in the principal [aspect] of man, i.e. in the intellect. There is the aspect of garment—namely, the intellect and the encircling. He has to make the transcendent immanent, and make himself different transcendent intellects/different garments. By doing so, he is saved from all ambushers and attackers. This is because MaLBUSh (garment) is numerically equivalent to ChaShMaL. And from the chashmal all the destroying angels flee.

3This is (Proverbs 31:25), “Might and grandeur are her garment, and she laughs to the very end.” By means of the garment/the chashmal, which is a garment of might and grandeur, a garment of strength and beauty, “she laughs to the very end.” He has no fear of him at all, as mentioned.

4And the main time for this is the month of Elul. <This is the time of comprehension>. And this is, “L’vushah Va’tischak L’yom Æcharon (her garment, she laughs to the very end),” the first letters of which are ELUL .