Well you certainly don't seem to be using rationalize as it was used before this side-track started. You've picked a definition that fits your argument rather than the one that was in context.
How can a dictionary definition be "out of context?" You asked which definition I was using and I showed you one. I also said there were many, so you can pick one to as well. Find any recognized dictionary source which indicates rationality is an exclusive human attribute, since that was your argument. There didn't seem to be one of those when I looked. None of them indicated this was exclusive to humans, and I would think if that were the case, they would all mention this. Maybe all the dictionaries are being irrational and taking things out of context? Maybe they all suffer from mass delusions?
I've said that 95% of the species has exhibited a behavioral characteristic for the entirety of it's existence and this is evidence the characteristic is fundamental to the species. But actually, I didn't state this, it comes from a cat named Darwin.
Yes, everyone is connecting to spiritual nature and believe in something greater than self.
That you find it strange beliefs would change over time, whether the belief is centered on something real or a mass delusion, is strange in itself. Of course they would change. Most things do. Why, if spiritual belief is delusion, would it remain static?
I don't think I'd characterize religious or spiritual belief as delusion, anyway. I don't think it quite fits, at least not most of the time.
I find it strange that a mass delusion would need to take on different incarnations. If it's just some fake thing that man invented in their mind to console their mortality, then why would it need to change at all? Now I've explained why I believe different religions exist, it's because man can't quite comprehend spiritual nature, and as a result, conjures up different versions of what he thinks it may be. Perhaps some of those beliefs have been dilusional? I won't argue that, but spirituality is consistent and constant belief in something greater than self.
Ahh.... so now you are running away from your compadres mass delusion theory? Can't say I blame you for that at all. It's pretty fucked!