day no. 15,458: God reveals to us exactly what life is when God does not reveal to us what life is.

"Ecclesiastes is all monologue, not dialogue... It is inspired monologue. God in His providence has arranged for this one book of mere rational philosophy to be included in the canon of Scripture because this too is divine revelation. It is divine revelation precisely in being the absence of divine revelation. It is like the silhouette of the rest of the Bible. It is what Fulton Sheen calls 'black grace' instead of 'white grace,' revelation by darkness rather than by light. In this book God reveals to us exactly what life is when God does not reveal to us what life is. Ecclesiastes frames the Bible as death frames life." -- Peter Kreeft, Three Philosophies of Life

We do not appreciate the vapidity of life. How could we? We are prevented from seeing it. Without God's grace, we don't even know how meaningless life is without God. Many live without reference to God without much consideration given to the purpose of any of it. Some may say then, that in this regard, ignorance is bliss; but only in the same way a sleeping driver careening into oncoming traffic is in a state of bliss. In that case, the bliss ends in an abrupt bang.

God, in His goodness, gives us  Ecclesiastes as a grace in seeing the meaninglessness of life under the sun if there is nothing out there beyond it. If the sun that illuminates our world is merely the product of happenstance and our lives are merely the latest and greatest mutations on the evolutionary soup of the day menu, then there is no basis for insisting on the meaning of anything. But only God's grace could reveal this to us. In other words, if He does not help us to see that, we will remain blind to our own blindness. We will never see that we cannot see. We won't even know that we're not seeing something. But His light pierces that darkness just like His Word produces light that broke into the dark chaos of the emptiness that preceded our existence.