A person who puts their life confidence in something visible. This person gets the feelings of love, harmony, unity, acceptance, courage, strength, patience, joy and all the other things that God brings from something worldly. They either believe in themselves while thinking that Christians do not (wrong) or believe in someone/thing else (ie. girlfriend, drugs, technology, scientist) to bring them hope and joy. The problem with this is personal to the atheist as it is a system of faith that will eventually fail. What happens if the person you believe in dies, or gets ill? What happens if you run out of cocaine or alcohol to feel social? They do not worship these things, but the atheist relies upon them just as the spiritualist relies on God.
Me: Explain how the world came into existence
Me: Yes I believe in that as well, but its not all an accident
Atheist: WHA?? you believe in science?
(shit, there goes 20 of my arguments)