The wind blows to the south and goes around to the north; around and around goes the wind, and on its circuits the wind returns.
To prove the vanity of all things under the sun, and their insufficiency to make us happy, Solomon here shows, 1. That the time of our enjoyment of these things is very short, and only while we accomplish as a hireling his day. We continue in the world but for one generation, which is continually passing away to make room for another, and we are passing with it.
Commenting on Ecclesiastes 1:4-8
The wind goeth toward the south, and turneth about unto the north,.... The word "wind" is not in this clause in the original text, but is taken from the next, and so may be rendered, "it goeth towards the south", &c.
according to his circuits--that is, it returns afresh to its former circuits, however many be its previous veerings about. The north and south winds are the two prevailing winds in Palestine and Egypt.