Hi Patiodog, always a pleasure to hear from you
Hmmm, I guess I should take a moment to figure out (even for myself) exactly what I mean by "spiritual" feeling.
For me, I'm not sure it comes from realizing how much I don't know, but instead from recognizing the implications of what we do know (and I'm not talking about absolute knowledge, but about knowing beyond a reasonable doubt, and within the limitations of the philosophy I follow).