Aleister Crowley identifies this process as one of Love. He explains in Little Essays Towards Truth:
The truly magical operations of Love are therefore the Trances, more especially those of Understanding; as will readily have been appreciated by those who have made a careful Qabalistic study of the nature of Binah. For she is omniform as Love and as Death, the Great Sea whence all Life springs, and whose black womb reabsorbs all. She thus resumes in herself the duplex process of the Formula of Love under Will; for is not Pan the All-Begetter in the heart of the Groves at high noon, and is not Her "hair the trees of Eternity" the filaments of All-Devouring Godhead "under the Night of Pan?"
It is also described in the mystical text Liber VII:
Ascend in the flame of the pyre, O my soul! Thy God is like the cold emptiness of the utmost heaven, into which thou radiatest thy little light.
When Thou shall know me, O empty God, my flame shall utterly expire in Thy great N. O. X.
—Liber Liberi vel Lapdis Lazuli, I:39-40
Finally, Crowley writes of the Night of Pan in his The Book of Lies, in the chapter "Sabbath of the Goat":
O! the heart of N.O.X. the Night of Pan.
PAN: Duality: Energy: Death.
Death: Begetting: the supporters of O!
To beget is to die; to die is to beget.
Cast the Seed into the Field of Night.
Life and Death are two names of A.
Kill thyself.
Neither of these alone is enough.
In his Commentary on this writing, Crowley explains:
It is explained that this triad lives in Night, the Night of Pan, which is mystically called N.O.X., and this O is identified with the O in this word. N is the Tarot symbol, Death; and the X or Cross is the sign of the Phallus. NOX adds to 210, which symbolizes the reduction of duality to unity, and thence to negativity, and is thus a hieroglyph of the Great Work.
The word Pan is then explained, {Pi}, the letter of Mars, is a hieroglyph of two pillars, and therefore suggest duality; A, by its shape, is the pentagram, energy, and N, by its Tarot attribution, is death. NOX is then further explained, and it is shown that the ultimate Trinity, O!, is supported, or fed, by the process of death and begetting, which are the laws of the universe...It is then asserted that the ultimate letter A has two names, or phases, Life and Death.
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