The kind of scientific reasoning used is limited. Even the most intelligent person and the greatest scientist of 20th century, Einstein, had come to believe in a Supreme Power (after being an atheist). That didn't mean he went on to prove the existence of God.
We humans are limited by our senses. It is unwise to scrutinize something that is beyond everything with our limited senses. There is no need for proof - you just need to feel it. You don't go on proving everything that you don't understand. If you want the truth, you need to practise the prescribed path(s) to realize God in whatever form you desire. Others like me, just start with faith in Him.
