Today I did 30 minutes of sitting Ch’an/Zen meditation. I found it was about 20 min before the trance state got extremely deep- though I did generate a decent one within 5 min. Thoughts weren’t popping much, however..I did notice when they did- it was snippets of various things. Also noted that time went fast for first 25 min, then it got slow the last 5.
There are body sensations I find with Ch’an/Zen however, what they are is something I’m going have to figure out and observe.