Two voices - teacher (critic) and the author to turn our world upside down

Generations come and generations go - we are just a blink

The random nature of life - glitch in the system of life: hevel (smoke)

Fear of the Lord and learn to hold things with the open hand - attitude toward now

The teacher deconstructed all the way we find meaning apart from God

The book points us to go the right direction to further wisdom:

Fear God and keep his commands - this is the whole duty of humans: for God will bring every deed into judgment, every hidden thing, whether good or evil.