Traditionally speaking, from ancient Greeks and yogis to religions and philosophy, happiness was thought of as a result of self knowledge or knowing oneself. The idea behind it is that happiness doesn’t resonate with ignorance.
As much as this concept of happiness still on today, as much as it is not complete. For the German philosopher Arthur Schopenhauer, “Ignorance is a blessing”. So, knowledge doesn’t bring happiness; in fact it can bring sadness and despair.
Imagine one would find out about a deep forgotten childhood trauma? Imagine knowing a dark family secret? Imagine knowing the eventual death date? Imagine a clear self knowledge without any good luck in actions?
Happiness is not about self knowledge but about an attitude or a will to be happy; that’s fifty percent of the deal. The other fifty percent are left to luck.