At age 7 I lay in my bed at night and tried to go with my mind into the Universe to see if I could find the end of the Universe.
I went deeper and deeper and couldn't find any ending.
It scared the sh.t out of me and ran to my father and told him the story. He let me sleep with him that night. I was super scared.
However since then I have not stopped searching, wondering or imagining about our finite and infinite worlds!