Every time I circle back to extended periods of posture-holding, I find all kinds of new layers in my practice. Lately, I've been holding Single Whip. I was shooting some other videos and I thought, "why not see what happens over those 30 minutes". I had a mic on, so whenever I changed focus or felt some big internal shift, I made a comment. The end result, condensed down to 3:30, includes minute markers for each of the changes.
And here's the same footage, except all 30 minutes are shown, sped up at 8x.