Or do you just base this on the idea that we believe in something that you don't think is rational?
If I tell you I read LOTR fourty-eleven times and from that learned how to forge a magic sword to fight off the orcs that live under my basement, you'll form an opinion of my sanity.
If I say I wrote to Dr. Gregory House with the symptoms I'm experiencing, and he came to my house at midnight and cured me, you'll form an opinion.
My friend who played D&D with me went to sick call and gave the symptoms his elf mage exhibited after the character slept with a whore in a tavern in Greyhawk, and fumbled his 'save versus STDs' roll and woke up with an invisible dick... The Navy has an official opinion on his sanity. A widely accepted one, too...
IF I tell you that the second time I met my FTB Detailer, he asked what billet I wanted, and I said I wanted to be the Intel officer on the USS Enterprise, and he thought I meant the aircraft carrier, but I insisted it was NCC 1701, and demanded the Intel school, you'd form an opinion.
But if you tell me that your favorite skybeast was going to throw you into Hell, for eternity, to punish you for, at a minimum, someone else fucking things up and dooming all their descendants, like you, to pay for THEIR sin, but your second favorite skybeast stood up for you, arguing with the first skybeast, (who is the same skybeast) because he came to Earth and got tortured to death...by descendants of the first sinners... But this time he forgave them their sins, rather than curse them even more...
You tell me this and, what, I'm supposed to say, Hey, it's your opinion....?