• To you I'm an atheist; 
• to God, I'm the Loyal Opposition.
• Woody Allen, in Stardust Memories (1980)

Seeker: Why is God invisible?
Master: Why is man not invisible?

S: Coz man has a material body.
M: You answered your own question.

S: But if God is invisible, then how do you know God exists?
M: If someone hits you, do you become angry?

S: Yes, I do.
M: Show me your anger.

S: I can't. It can't be seen.
M: If it can't be seen or shown, how do you know anger exists?

S: I feel it.
M: I feel God, too.

S: What if your feeling is wrong? Maybe there is no God.
M: You are right. I am addicted to wrong feelings... :))