sn54.6:3.1 “And how is mindfulness of breathing fulfilled in detail?
sn54.6:3.2 It’s when a mendicant—gone to a wilderness, or to the root of a tree, or to an empty hut—sits down cross-legged, sets their body straight, and brings mindfulness to the present.
sn54.6:3.3 Just mindful, they breathe in. Mindful, they breathe out.
sn54.6:3.4 Breathing in heavily they know: ‘I’m breathing in heavily.’ Breathing out heavily they know: ‘I’m breathing out heavily.’ …
sn54.6:3.5 They practice like this: ‘I’ll breathe in observing letting go.’ They practice like this: ‘I’ll breathe out observing letting go.’
sn54.6:3.6 This is how mindfulness of breathing is fulfilled in detail.”