Ecclesiastes contains the thoughts of “the Philosopher”, a man who reflected deeply on how short and contradictory human life is, with its mysterious injustices and frustrations, and concluded that “life is useless”.
He could not understand the ways of God, who controls human destiny.
The theme of Ecclesiastes is the necessity of fearing God in this fallen, confusing world.
Each human being wants to understand all the ways God is acting in the world, but he cannot, because he is not God.
And yet the faithful do not despair but cling to God, even when they cannot see what God is doing.