I didn't mean to classify it as a disorder. I guess I should have chosen my words more carefully. I wanted to know why some people can believe two opposite things regarding the question of existence.
All I wanted to know is how people who believe what they believe and will defend it with every breath tackle contradictions in their beliefs.
Well about the defending part:
When thinking about God, the same one who is worshipped by Muslims, Catholics, Christians, and Mormons (mostly the the minority of mormons, the general types know god doesn't need defending), its mostly cause the bible demands it.
Take this for instance:
(Just an example - not saying this is what religion is to anyone who is a believer)
(And for Rule 6: this is not a suggestion of doing or committing anything illegal, it is an example)
You have a sibling, that sibling is kidnapped by The Mafia, and they expect you to work your butt off for them. They want you to work for them, you'll get compensation but not as much as those willingly part of the Mafia, and if trouble arises, you have to defend them to your dying breath, you have to not spread their secrets, or involve the police in any of their activities.
Price if you don't comply with their demands: Your sibling dies.
Reward if you do comply with their demands: You and your sibling are well taken care of and will NEVER have to worry about money, bills, food, luxuries, the best education, and they'll ensure your sibling never comes to harm by them or anyone else, your sibling will be treated as prince/princess.
So with that example, think of God as the ultimate being who has absolute control over your existence. He lets you choose to follow him or not, lets you choose to be good or bad or a moderation of both, but every choice you make has consequences & rewards - like training a dog to learn the difference between "Good Dog" & "Bad Dog". If you follow his commands and be good, you get Paradise. You do not follow his commands, and don't say "I'm sorry" to God in your prayers, then you go to Hell.
Now consider the "Heaven or Hell" bit. You as a mortal reads a book talking about this deity, many many people believe this Deity is real (they don't know for sure, but they don't want to risk the chance that if they ignore it & are wrong about that deity not existing), you don't know with 100% certainty whether or not this Deity exists.
If you believe the Deity is real, you too would defend it as that Deity demands it.
Course if you don't believe this deity exists, why would you defend it if you didn't believe?
Yeah, they say he is a powerful deity that could end creation with a thought, bestow never ending paradise on us for being good followers, but he also threatens that if you refuse him, all you'll get is eternal punishment. Now as a hypothetical Believer, would you want Eternal Paradise or Eternal Suffering? Every single believer on the planet agrees, they want paradise and will do whatever their Deity commands them in order to go Paradise instead of Hell.
That Answer your question?