WHERE ARE WE EXPANDING DEAR

All this while i was wondering what might have happened if there hadn't been a BIG BANG.....But then what struck my mind was something even more concerning.. was there really a BIG BANG and if so what existed before that. I always had the feeling that if we are traversing in positive direction of time now....before BIG BANG was there something that might have traversed in the negative direction of time..i always believed in conservation of energy..that led to this thought..but this is preposterous as i forgot that entropy is irreversible. Even had entropy been reversible then also my imaginary explanation wouldn't have sufficed as phenomena that have root level reversible dynamics fail to produce a reversible system.
Then what is that, that could even if slightly fulfil my senses of universe being nothing to something that we perceive today..Big guns say that the universe was a grain of infinite density in the beginning just before Big bang (point from where we took control over god, although any of us were not there physically our analytical spirits can still go back into time uptil that point )...If the universe was a single grain just before big Bang what was the container in which it contained itself... wasn't that container a part of the universe.. and if not then where to accomodate the extra element...after big bang i agree the grain expanded to form the universe and it will keep on expanding till atleast we become part of Satan, or to be logical until the gravitational energy just about overcomes the so called cosmic energy...so i am keeping my fingers crossed for mankind to witness a state where gravitational energy overcomes the cosmological elements so that everything falls back to create a grain and yet another BIG bang eventually.. and fortunately some space in my imaginary container for the souls of the Big Guns to see their mathematical solutions unfold.....Till then we would be as ignorant as ever..... But who cares
anyways....If we would have known what existed before BIG BANG who would have bothered to worship god..Seems like our universe is a problem which would never yeild a definite answer from the lack of initial boundary conditions....so lets stop trying.. and have some fun with what we have....