What is the fine line between
"religion"/"not religion"?
I will give an answer, although I am not qualified to answer that question ( ) I see religion as a way to better ourselves spiritually rather than physically. One doesn't necessarily need a deity or deities to achieve this- so a religion would not need a God. Our bodies suffer if we don't exercise- walking, running, etc and since I believe we have spirits I also believe that our spirits would also suffer if we don't take care of that, as well.
That is my view (partially).