let me tell you something, you believe that other planets exist. You KNOW other planets exists. you have never seen mars or pluto, yet you KNOW they exist. Because you have been raised all your life by people KNOWING they exist.

This is the same idea just on a much more complex level. I know God exists because ive died and ive been in hell. You can say that it was a slight subconcious thing showing me what happened. But i was turtured in hell for what seemed like two eternities before the docters brought me back to life. I HAVE seen the other side, that IS my concrete evidence. who knows maybe you should be beat with a metal bat and hopefully revived after you die like i was and find out for yourself.