Spirituality. It comes in many flavors. Sometimes it's strong in me and other times it isn't. The nice thing about mine it's never far away, if I choose to slow down enough or can, to reach for it, if needed or desired. It has changed over time, as I have. I can get a strong sense of it, just taking the time to smoke a cigar the proper way, for me. It's almost a zen, perhaps it is just that, but it's certianly an inner peace. Is the object of attention or thought just a catalyst to those that don't speak? I don't know. But for me it can be, doesn't have to be, but it can be a focus.
Experiences? Oh, my yes. Strange would be fitting to describe some. I keep my mouth shut on the intense, intense being a poor choice of words, peaceful is in there as well. They can be intense in just trying to put words to them. If such things could be conveied to others, I doubt if most would see any peace in them at all, just describe me as bonkers or worse. I have to know the person very well to speak of them.
Interesting thoughts and would be interested to see follow ups on some conclusions you might reach.
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Just enjoy what you do, as best you can, and let the dog out once in a while.