When I applied my heart to know wisdom and to see the business that is done on earth, even though one sees no sleep day or night, then I saw all the work of God, that a man cannot find out the work that is done under the sun. For though a man labors to discover it, yet he will not find it; moreover, though a wise man attempts to know it, he will not be able to find it. Ecclesiastes 8:16-17
No sleep until I find out what God is up to! Solomon apparently tried to catalog or discover all the work being done on the earth by man, even the busyness of the night time, and saw some insight into the work of God. His insight was that man cannot know all the work of God that goes on day and night. Work at it though he might, the man could not see all of God's work and there was work of God that he could not comprehend.
So, if the wisest of men could not even hope to comprehend all that humans were up to and discerned that he could not know what God was doing under the Sun, what hope have I then of knowing God's work? All that God does is His business, I have only to trust in His steadfast love and goodness.Bucky