I'm not a religious person, but I do believe in Hell.
For some reason I can't explain, I just believe that there is a higher power above us and after our current life we go to either heaven or hell afterwards. Where we go is based upon the higher power's judgement.
I'm not one of those crazy religious people that downs other people's beliefs, I respect all of them. Even if you don't believe in anything or believe in something, that doesn't change my attitude towards you.
They say there's an opposite to everything, which is why I like to believe there's a negative and positive after-life.
Just my 2 cents.