I myself don't really believe in a higher being, well not in the form of a separate entity.
I believe in the higher being in the way of being itself. We all are, and there is only being, to be. One cannot not be because the not being itself is a form of being..)
Anyway, I don't think some entity created all this, because I don't believe in a separate God-like entity but I believe we all are gods. We all "are", we all consist of that energy, thesame energy everything consists of.
If you believe in something like a God who has created this all, then when/how is that God created?
I think you're getting to the problem of infinity here. We humans just cannot grasp infinity, yet we go into infinity with what we'd like to know.
How and why the universe/multiverse got so infinetly complex and beautiful I don't know, but then I as a human could probably not possibly ever understand that either.
I think this is one of the points where religion offers relief, because it can give us answers to our infinite infinity questions so that we don't go crazy wondering..
Science answers how, religion answers why.
(yet since I don't really believe in that God part, I guess my why questions remain unanswered. But that is perfectly fine too.)