Kabbalah su Giobbe 14:22

And it dwells there some time, sitting and clothing itself in the image of this world. And on the first day of the month and on Shabbat, when it wants to rise, the righteous men who are in the Garden of Eden give it a letter as a sign. And it ascends through that same pillar, where it meets the watchmen of the walls of Jerusalem. If it is meritorious, they open the gate and it enters. If not, they take the letter away and throw it out. As it is written, "The watchmen that go about the city found me...the keepers of the walls took away my veil from me" (Shir Hashirim 5:7). (The veil) is the letter given as a sign, which has been taken away from it, by the watchmen of the walls of Jerusalem. End of Sitrei Torah.