Musar su Levitico 23:34

Correspondingly, the Holy One Blessed is He has commanded us regarding the mitzvah of sukkah, as it is stated, “On the fifteenth day of this seventh month shall be the Yom Tov of Sukkos for seven days to Hashem” (Vayikra 23:34). The word “Sukkos,” which is written without a letter vav, [סכת] has a value of 480 to indicate that whoever fulfills this mitzvah fully, nullifies the power and dominion of the wicked Lilis. Therefore it seems to me that on Yom Kippur neither Satan nor Lilis has any power over Israel, but immediately after Yom Kippur they begin accusing them afresh, it is for this reason that the holy people Israel immerse themselves in the mitzvah of sukkah, with a numerical value of 480, immediately after Yom Kippur, to counteract the accusations of the evil Lilis. For every mitzvah that has a value of 480 has the power to nullify the impure shell of Lilis. Rav Galanti writes concerning the verse, “She [i.e., Jerusalem] was filled with justice but now, murderers” (Yeshayahu 1:21), that in Jerusalem there were four hundred and eighty synagogues (Midrash Eichah Rabbah, Pesikta 12; 2:4) and together with the Holy Temple they totaled 481, the value of the word ‘filled’ [melei’asi]. But then when Jerusalem was destroyed, Lilis and her cohorts grew stronger so that she was then able to kill a multitude of Israel like the sand of the sea. This was in fulfillment of the words, ‘but now, murderers,’ on account of our many sins.”