Mindfulness, vigilance and … a loophole! Each and every verse resonates with me, but I feel that in particular verses 35 and 36 are the heart of the 37 practices. As I said in the post on these verses, linked above, each of the preceding practices in fact depends on mindfulness and vigilance. To review: mindfulness knows what will help us awaken and what will dig us deeper into samsara; and vigilance knows which one we are doing.
We’ll get to the loophole in a bit.