If someone claims to be awakened, their claim should be interrogated with a detailed series of detailed questions. Only if they can answer them clearly should the claim be accepted.
Beginning by praising a wise person, the Buddha goes on to explain that one becomes wise by inquiring into the elements, sense fields, dependent origination, and what is possible and impossible.
Reflecting on the changes that even geographical features undergo, the Buddha then recounts the names of sages of the past who have lived in Mount Isigili near Rājagaha.
Surrounded by many well-practiced mendicants, the Buddha teaches mindfulness of breathing in detail, showing how it relates to the four kinds of mindfulness meditation.
This focuses on the first aspect of mindfulness meditation, the observation of the body. This set of practices, simple as they seem, have far-reaching benefits.