And indeed... my belief that pizza is delicious is formed much the same way as a belief in gods is formed. In fact... one could say the same of all beliefs. The only way to avoid doing this is to have no beliefs at all... and then what be different between you and the rocks? 
People often don't know enough about their brain and chemicals to explain 'why' they believe in gods, why they like to play certain games, etc. People are not insane, crazy, or even stupid necessarily for a belief in gods.

People often don't know enough about their brain and chemicals to explain 'why' they believe in gods, why they like to play certain games, etc. People are not insane, crazy, or even stupid necessarily for a belief in gods.

Please give me a home where cloud buffalo roam
Where the dear and the strangers can play
Where sometimes is heard a discouraging word
But the skies are not stormy all day