nasor said:
Belief in or worship of supernatural forces, beings, or realities. I think that does a reasonably good job of covering all the things that people normally mean when they talk about "religion". . . .
Doesn't that miss the important point that religious people believe these supernatural forces or beings
have control over the natural world, at least intermittently or at their whim? If a person has a hunch that there is a supernatural universe out there which is
completely unobservable by us, and therefore hews to my expression of the underlying principle of science (that the natural universe is a closed system unaffected by external--i.e. supernatural--forces), would you define him as "religious"? Assuming that he got the rest of his science right, I'd be happy to accept him as a proper scientist who had not yet succeeded in proving his favorite hypothesis "true beyond a reasonable doubt" and therefore did not expect anyone else to accept it.
In my experience our quarrel with the religionists is not focused on their belief in the supernatural, but in their belief
that there is evidence for its existence. This evidence is almost invariably in the form of allegedly reliable eyewitness accounts of supernatural creatures tampering in an unmistakable way with the behavior of the natural universe. But sometimes it comes instead with a scatterbrained attempt at reasoning: "Hey, there are butterflies! That's plenty of evidence for the existence of a benevolent god."
If a person agrees that no extraordinary evidence has yet been found to substantiate his extraordinary assertion, that would put him in a small (but admittedly non-zero) minority of religionists.
The Abrahamists who comprise the religious population that most of us Westerners come in regular contact with speak proudly of their "faith," but for most of them it is not a totally unreasoned faith. They believe there are at least a few shreds of evidence.