The "Linked Discourses on Mindfulness of Breathing" contains discourses focusing on the practice of mindfulness of breathing (ānāpānasati). These teachings explore the sixteen steps of mindfulness of breathing, which fulfill the four foundations of mindfulness and lead to the seven factors of awakening. By cultivating this practice, one develops collectedness and insight, leading to liberation.

Ānāpānasaṁyutta - Linked Discourses on Mindfulness of Breathing

Emerging from a three-month seclusion, the Buddha reveals his primary meditative dwelling: collectedness born from mindfulness of breathing. He elevates this practice as the “Tathāgata’s dwelling.” For a trainee, it leads to the wearing away of defilements, and for an Arahant, it offers a pleasant dwelling in this life.

The Buddha explains the development of mindfulness of breathing and its benefits in fulfilling the four establishments of mindfulness, the seven factors of awakening, and clear knowing and release.