Logic is Spock's religion...

After the Mythic stage of development comes the Rational stage. Eventually, people start to see some issues with worshiping and relying on magic, spirits, deities, etc. Namely, their prayers or spells usually do not seem to work. So what do they do? Sometimes, they explain it with a crutch, like a misused definition of "Faith", or they wave their hands and say that it is all part of the higher being's(s') plans. The response to this is an argument, and the argument soon recruits logic and rationale as weapons.

Eventually, some people progress to the "show me" stage, where they believe only things that they can see, or make sense of. They will say things like:

"I do not mean to say God doesn't exist. I just haven't seen evidence."

"Why do you believe in things blindly, without being shown the reason?"

Contrary to the belief of most Stage 3 individuals, people in the Rational stage are not all discounting the existence of the entities in the lower stages. They are simply saying that if those things do exist, there needs to be some explanation. Not only that, they wonder how others can abide the contradictions in the dogma of the first three stages. Examples of contradictions are how multiple Stage 3 religions can claim to be the true one, and how any beings like the one they describe would allow multiple false faiths to exist if that was the case. For instance, the largest faith in the world contains 2.5 Billion members. According to them, 3.5 Billion people are wrong, and some higher power hates or looks down on all the 3.5 Billion non-believers. How can that be true, wonder the Stage 4 folks?

Pretty much all members of the Rational stage of development would admit that they might believe in some sort of dogma if it could be proven. Once again, this stage does not do away with previous stages, it just includes them and looks at them from a higher perspective.