The point is: there is no point.
I am writing this because I am; you are reading this because you are.
You are as you are because the universe is as it is, and it is as it is because you are as you are.
Everything is the cause and effect of everything.
The universe exists because you are here to see it, and you are here to see it because it is here to be seen.
It occurs in the mind; a figment of your imagination.
You are a figment of your imagination.
There is nothing to understand.
Everything is as it is.
The answer to your question is: because.