This is all very interesting to me. I think it illustrates, among other things, that we are a very diverse group of folks. The fact that there seem to be many definitions to the term isn't bad. It does suggest that self-definition may sometimes be in order, though, since we all seem to have a slightly different approach to the concept.
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"Stand in the ways and see, and ask for the old paths, where the good way is, and walk in it; then you will find rest for your souls."