Zohar
"And Jacob went out from Beer-Sheva, and went toward Charan" (Gen. 28:10). Rabbi Chiya opened the discussion with the verse, "The sun also rises, and the sun goes down, and hastens to its place where it rises again" (Kohelet 1:5). This verse has been explained. But the phrase, "the sun also rises," refers to Jacob when he was in Beer-Sheva. The phrase, "and the sun goes down," refers to Jacob when he went to Charan, as it is written, "And tarried there all night, for the sun was set" (Beresheet 28:11). The passage, "and hastens to its place where it rises again," is similar to the verse, "and lay down in that place to sleep" (Ibid. 11).
Zohar
Rabbi Chiya said that when the sun, goes west the west represents the throne of the sun, the place upon which the sun dwells. This is the meaning of the verse, "and hastens to its place where it rises again," for it goes to that place to shine upon it. It takes all the lights and gathers them to itself.
Zohar
Rabbi Yitzchak began the discussion with the verse, "The sun also rises and the sun goes down and hastens to its place where it rises again" (Kohelet 1:5). "The sun also rises," refers to the sun, which shines on the moon. For when the sun is seen by her, she shines, illuminates and shines from the supreme place that is above it, from where it always rises. "And the sun goes down," means that when it comes to mate with the moon it "goes towards the south" (Ibid. 6), which is the Right and there reposes its strength, because its strength is in the right. As a result, all the strength of a man's body is in the right side, from which stems the strength of the body. Later, "and veers to the north," and shines upon this side and shines upon that side. "Round and round goes the wind" (Ibid.). Why is it first written, "sun," and now "wind." All is one secret. And all this happens so that the moon will illuminate by its light and the two will join.