Well, it is a great scientific endeavour to understand the concept of God.
after reading few translations of Gita & Vedas, the most ancient books of wisdom on earth & which are believed to have not been written by anyone but emerged on their own.. IMO they answer the things in the most scientific way...
it will be a very very long discussion...to fully answer the queries..
However, many latest discoveries in quantum physics are well postulated in vedas..and scientists do confirm that..
God is not bound by the boundaries of time & dimensions of space, he exists everywhere at the same time...
Vedas also provides answers to soul...nd much more..