God in many ways, is like Diet Coke...

Recently at my college, a spoken word artist performed. He was also agnostic, and one poem he wrote in particular spoke to me. He compared God to Diet Coke, saying that Diet Coke helps him get through the hard times in the same way that God helps others.
Just another one of the many erudite emails sent to the Church of the Flying Spaghetti Monster. I just don't understand why specifically Diet Coke.
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