You can shape your reality if you focus your energy and efforts in what you would like. Instead of paying attention to what you don’t want.
The more precise your thoughts are the more likely the universe can please you.
Or to put it in more “terrestrial” words:
Universe: What do you want?
You: I don’t know.
Universe: Allright, I can give you this life.
You: I don’t want this life!
Universe: Ok, what do you want?
You: I’m not sure…
Universe: Ok, I can give you this, and this, and this.
You: These are terrible things!! Give me something else!!
Universe: Ok, then what you want?
You: I don’t know!!!!
Universe: Ugh, Frick you! You will have that life until you know what you want and now you will have to work hard for it!