When you realize that life is meaningless and the only meaning of life is in your head.
You suddenly relax and realize that life is not serious. In that moment of needing to do nothing you feel your innate pull to create something. This is called desire.
Previously desire was experienced through the mind as “I must get this done or there will be a consequence. I will be a loser. Or I will not get what I need to prove to myself that I’m valuable.”.
Once you detach from the untruth that life is important or valuable, you are free to create without any concern for whether your creations turn out or not. In that moment your creations become more powerful and joyous.