Loaded Walk

One bell, 10–20 minutes of walking, preferably on uneven ground. The whole session is a carry — posture under fatigue, traversing in miniature.

The lesson

01
One bell, uneven ground
Trail, grass, gravel, gentle hills. Flat pavement is the version that doesn't work.
02
Posture is the work
Tall spine, proud chest, level shoulders — every step, for 10 to 20 minutes. Switch hands whenever you need to; the rule is the posture, not the grip.
03
The test
Pick a bell you can stay tall under for the whole walk. If you're hunched around it in the first five minutes, it's too heavy.