Most of your life, you don’t know what you’re doing or how you should do. It’s like some kind of mental disability passed down from generation to generation.
You can’t have a complete understanding of how to spend youth when you have youth. It is impossible to have both middle age and complete knowledge of middle age. It is impossible to have both love and complete cognition of love. It is impossible to embrace death and have a complete understanding of it at the same time.
These are more like fate than fate itself.