Traveling Between Fantasies

I don't know why I exist. What is the meaning of my existence? It seems like we have changed everything. Just like a butterfly exists, it may also start a storm. It seems like nothing has changed. If everything that happens is defined as a timeline, then in a higher time, our thoughts, our actions, everything we do is like the characters in the book Does detachment exist? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.