Zohar for All, VaYetze, 15: The reason that the book begins with the words, “The sun rises and the sun sets” is that it is the Hevel that sustains the world, to bring man into the high faith of the Creator.
All this we need to translate into Kabbalistic language. “The sun rises, and the sun sets” speaks about the fact that the upper light shines upon a person, and by its rising and setting, by its alternating influence, it causes the appearance of new desires in a person.
“The sun rises” means that I begin to desire something, the light causes a certain excitement in me. When it disappears, I am left with an empty desire. This is the best condition: I begin to yearn for the light that I have felt and do not know how to reach it. Here a person has the opportunity of freewill: to yearn by himself to be similar to the light.
Now the light will not come to me by itself. It showed me some good condition and disappeared. What to do? I cannot live without it anymore.
Then I come to the conclusion, through a very long path of suffering (or through Kabbalah very concisely and quickly), that I myself need to be like the light. There is no need to wait for it to come and fill me up. It will not come again! It just showed me an example of how I can be happy, eternal, and perfect. Now I have to reach this state by myself. It is possible.
It already depends on me. I do not need to wait for mercy from nature, from the Creator.
Kabbalah only says that after I have received the light or felt the emptiness that we feel in the world today, I can still come to fulfillment.
From KabTV’s “The Power of The Book of Zohar” #13