I believe in free thought, but I don't agree that that will mean that deities will no longer be believed in.
For an off the record question: What was your Church like? I know it was Pentecostal, but some of them are similar to other Evangelicals, while others are totally crazy.
Oh, people will maintain their mystic indulgences, but systems of belief and doctrines will be over. I'm as atheist as they come, but I've had mystical experiences.
As for my church: it started out as a home missions church run by the United Pentecostal church international. I've got
a detailed account of what their doctrines are like, but in essence: the UPCI is on the crazy side. They don't do snake-handling, but that's about all I can say for them. I tend to conflate the UPCI and Pentecostalism in general, but a few key points:
1. The King James Version is the Word of God, always right, must be followed, etc.
2. People are born bad and worthy of being set on fire, but God has a plan.
3. The plan is Acts 2:38 (repent, be baptized, receive the holy ghost)
4. Baptism must be done via full immersion, and in "Jesus name".
5. You only know you have the Holy Ghost if you've spoken in tongues and you feel different.
6. To keep the holy ghost you must abstain from sin and strive to be like God, which means following holiness standards. Men must look like Mr. Brady -- no facial hair, no longish hair. Pants. No jewelry. Women must wear dresses, can not wear make up, cannot cut their hair. Worldy entertainment is forbidden. Until recently this included televisions, but they're trying to change that.
7. People have a duty to worship god, which means screaming at him in tongues, running in circles, falling on the floor, that kind of thing.
8. You can't go into heaven if you have spot of sin, you have to be in a constant state of paranoia and repentence.
9. Very authoritarian: so long as the preacher isn't breaking UPCI doctrine, you must take his word as the Gospel Truth and follow his every command. If he's wrong, God will punish him: but if you disobey, you get punished regardless. My last preacher was very keen on this, and he's turned his congregation into a kind of cult.
I think that covers the basics. The UPCI is sometimes called a cult, and for good reason: they're very keen on maintaining environmental control over their people, and very authoritarian as I mentioned before .