Thanks, Shawn. That is what I figured and that is how I remember it back when I was very deep into Tai Chi Chuan practice with my most foundational teacher, Marvin Smalheiser, publisher of T'AI CHI MAGAZINE. I was doing at least 3 hours of T'ai Chi and related QiGong every day, attending 3-4 classes a week, teaching beginners, doing pushing hands, fast forms and weapons and sitting and standing meditation.
And I remember this same sensation and having it shift and change.
So my experience bears out what you say, but my memory was a bit fuzzy on this. Now that you say it, it all comes back with confidence and clarity.
Thanks again.
I appreciate this forum and all of the shared experience and guidance.
Blessings,
Steve