There is an old Mexican saying that goes "quien no conoce a Dios a cualquier santo le reza", that translated is who does not know God prays to any saint. Whether it's true or not, truth is that many atheists have built idols.

Carl Jung regarded God as a psychological construct reflecting an image of 'the self'.
The sense of awe that a person can experience in relation to God is actually what one feels when encountering the depths of one’s own mind, according to Jung - which is incredibly powerful and felt to be beyond our control.

I don't know, but there is a very famous phrase from Jung that he gave in an interview when he was asked if he believed in God, he said "I don't need to believe, I know". Although I don't know what kind of God he was referring to.