Point of transition

Exploring Ex. 22 I found that attention to the breathe in a certain way can be a nice doorway into “moments” of transition:
Bring awareness to your breath and consider the inbreath as moment A. The transition between inbreath and outbreath becomes X. Then breathe out which is A1. The next transition between outbreath and inbreath is the next X a.s.o.
For me that works to open the “moment” X of transition getting a mooooore expaaaanded feeeel.