OMG what an illuminating post. Thank you!
Up to now I have known only of the mundane versions of the 4 “anussati”, all the while misunderstanding asubhanussati as foulness of the body. Also, I still have an ingrained habit of taking sati to be “mere mindfulness”, not as a mindset with tilakkana in the background.
This is after years and years of reading books that describe these terms only in this way. A lot of relearning to do!
Lang