To answer another's question: conciousness comes from activiy in one of your frontal lobes in your brain. When it's active, you are awake and aware, when not, you are asleep, in a coma, or worse.
We all have faith of some form. Faith that we are alive. That everything we experience is real, even imaginary things, because they are real in our mind. But that doesn't mean we have to believe in a God, God, a creator, Soul or ghost. When people ask about athiest I like the questions, "Do you belive in Zeus, the Greek Gods, Norse Gods, the Egyptian Gods, Native Amercan Spirits, etc.? When they say, no those, are silly! Then the response is, "It is like that, with one more."
The nothing and zero concept you are pondering about is quite abstract and complex. I think that is why Zero is actually a concept I personally don't completly grasp yet. It was beyond most accient civilizations, even quite advanced ones. It came from the Myan culture, and one of the most advanced concepts in the world I think.
The questions you are asking is beyond wither a God or Gods exist or not. Because if there is a God what created it?
For the nothing, current theories about the Big Bang is that is also created time, so for this nothing, what happened before their was time? And since something exist, even for a moment in time, then it always exist at that point in time. So if we could go back in time we would see thing, even that died or were destoryed, still exist. So does that make everything we precieve eternal?
Unless time is destoryed. That would be a nothing beyond which anyone, well at least that I know of, can exist. If time can be destoryed, is everything temporary?
So what came before time?