The Light’s revelation in the spiritual world is called “day.” Hence, “morning” is followed by “noon” and the afternoon prayer. The desire to enjoy grows inside of a person and he feels that he passes through various states. The “daytime hours” go by until this new egoistic desire grows so strong that the Light begins to be restricted and the sun begins to set. The person no longer has a sufficient amount of the Light of Hassadim in order to retain the Light of Hochma. His desire to enjoy has grown before receiving corrections.
As a result, “evening” sets in when he no longer can discern the desire to receive from the desire to bestow or the light from the darkness; everything is mixed together. He enters a “recumbent” state when Rosh-Toch-Sof (the head, body, and extremities of his soul) of his spiritual Partzuf are on the same level. He makes no calculations as he’s incapable of any.
The only thing he can do is maintain his “still” level and so he “goes to sleep,” which is a state that is very close to death. It’s in that state of “night” that he re-attains “unity,” the bond between souls and their union with the Creator, so that the Upper Light upholds him even in descent.
From here, we need to draw conclusions as to how to prepare ourselves for darkness at this preparatory stage before reaching the spiritual degrees. This is done by binding ourselves to the group, the Kabbalah books, and the study to form as many connections or “support blocks” as possible. When we make this correction, the “night” will end and “day” will begin anew.
From the 1st part of the Daily Kabbalah Lesson 04/04/10, The Zohar
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