[275] And again, bhikkhus, a bhikkhu, when walking, knows clearly, 'I am walking'; or when standing, knows clearly, 'I am standing'; or when sitting, knows clearly, 'I am sitting'; or when lying down, knows clearly, 'I am lying down.' Or in whatever way his body is disposed, he knows it accordingly. Thus he dwells contemplating the body in the body (kāyānupassanā) internally, or he dwells contemplating the body in the body externally, or he dwells contemplating the body in the body both internally and externally. He dwells contemplating in the body the nature of origination, or he dwells contemplating in the body the nature of dissolution, or he dwells contemplating in the body the nature of both origination and dissolution. Or else his mindfulness is established that 'there is a body,' just to the extent necessary for knowledge (ñāṇa) and for continued mindfulness. And he dwells independent, and does not cling to anything in the world. Thus too, bhikkhus, a bhikkhu dwells contemplating the body in the body.
End of the Section on Postures (iriyāpatha).
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.