Then you don't get the book, because it's pointing to God as the only source of meaning.
"Now all has been heard; here is the conclusion of the matter: Fear God and keep his commandments, for this is the duty of all mankind."
This does not change my view in the least. We are always confronted with the existential question, but we are forever unable to admit to ourselves, "I don't know." That's just too unsatisfying.
In the end, even such great thinkers as David Hume (in his
Dialogues Concerning Natural Religion) and Baruch Spinoza (in his
Ethics) eventually had to fall back on a sort of deism. However, as we discover more and more about the universe, and about the deep physics that underlies it, it becomes harder and harder to fall back even on deism.
Nature, as it happens, happens. And that's all the explanation I think we're ever going to get.