The Zohar, “Introduction of The Zohar,” Chapter “BeLaila De Kala (Night of the Bride)”: … the members of the bridal chamber must be with her on that night and rejoice with her in the corrections that she is corrected….
Question: What is the criterion of our advancement? Is it hatred that becomes revealed to us in the beginning or the opposite, joy?
Answer: First of all, I advance if I do not cease to mentally gaze at the place which I want to reveal. It is called the “bride,” and it is precisely there that the “groom” (the Light that will fill the “bride,” our unification) will descend to. (In Hebrew, a groom is “Hatan” which comes from the word “Nochet,” a descending one.)
If a persistent demand to reveal that place lives in me, then I’m glad for the effort that I can exert constantly. And it’s not important how often I stray, forget, or get distracted by a rational analysis.
It is said about this, “From Zion shall go forth the Torah.” In other words, advancement is comprised of these exits (Yetziot) from the attempts to re-define the place of our unification.
Each time I have to lose my concentration. After all, any state consists of 10 complete Sefirot. In spirituality, an action is performed only if all the 10 Sefirot are present (Ein Mi Ksat Be Ruchaniut). If I correct something, I have to correct a full measure. Each part of the desire demands separation from the previous state and a new approach to unity, to a new 10 Sefirot.
This is why we disconnect from the goal again and again, even if it just for a split second. Time after time we lose the target and catch it again at the crossroads.
Due to these efforts at night we “adorn the bride” (clothe her in the Light of Hassadim [Mercy]). That is, we build the Kli (vessel) until it becomes fully disclosed and ready to accept the groom, the Light of Hochma (Wisdom), the Creator.
From the 1st part of the Daily Kabbalah Lesson 11/14/10, “Hakdama, Laila de Kale (The Night of the Bride)”
The Work At Night