well that makes a good point but, going along with racer_f50, the comparision of the two isn't correct. God is a belief, light and heat are physical, you can change them.
However going along of you need a good to have an evil, is one thing. but to say evil is due to a lack of god in ones life is flawed. there are many ways to live a "good" life and a "bad" yet not do damage in any way to anyone or thing.
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