Likutei Moharan 205:2/ליקוטי מוהר"ן ר״ה:ב׳

12. Therefore, it is necessary to recite ten psalms. For there are ten types of song, which are the aspect of the ten styles that constitute the Book of Psalms, as is brought. These are: ashrei, lamnatzeach, maskil, halleluyah, etc. See Rashi’s comment. Any one of these ten styles has the power to negate the strength of the aforementioned kelipah, because each of these styles is the antithesis of the kelipah.

2[For example,] ashrei connotes seeing or gazing—the antithesis of the kelipah, whose main strength comes from the marring of sight, from the aspect of “His eyesight had faded” (Genesis 27:1). This is the aspect of “Let there be me’orot (luminaries)” (ibid. 1:14)—spelled “missing” (Pesachim 117a). Our Sages, of blessed memory, expounded: This is Lilith (Tikkuney Zohar #44). Thus it is that her main strength comes from marred sight, whereas ashrei, which connotes sight, is her inverse.

3The same is true of maskil. [Lilith] is the aspect of MeShaKeL (to bereave), whereas MaSKiL (to enlighten) is the opposite of this. See elsewhere concerning this subject. Her essential power to bring a man to sin by an emission of seed, God forbid, is through the language of Targum, which is the aspect of maskil via a translator—i.e., good mixed with evil. At times MeShaKeL, and at other times MaSKiL. See there.

4Halleluyah is also the antithesis of the kelipah, whose name is LYLyT because she constantly mYaLeLeT biyelalah (whines aloud). Hallel (praise) is the opposite of yelalah, because the letters of HaLeLY are the inverse of YeLaLaH.

5[Rebbe Nachman] did not expound the rest.

6In addition, the drop comes from daat, which is the aspect of chesed and gevurah, as is known. For the drop, too, is an aspect of chesed and gevurah, as explained above. And it is known that daat is the aspect of the five chasadim (benevolences) and the five gevurot (severities). Therefore, one needs to recite ten psalms.

7{“Of David, a maskil (enlightening psalm): Ashrei neseui pesha (Happy is he whose offense is forgiven)” (Psalms 32:1) .} This is the aspect of “Of David, a maskil: Ashrei neseui pesha,” the first letters of which spell NaAPh (adultery), which is subjugated by “Of David, a maskil”—i.e., Tehilym.