[306] Again, and furthermore, bhikkhus, with the abandoning of pleasure … a bhikkhu enters and dwells in the fourth jhāna. He sits pervading this very body with a pure, bright mind (citta); there is no part of his whole body that is unpervaded by the pure, bright mind. Just as, bhikkhus, a man might sit covered, head and all, with a white cloth, and there would be no part of his whole body unpervaded by the white cloth—even so, bhikkhus, a bhikkhu sits pervading this very body with a pure, bright mind; there is no part of his whole body that is unpervaded by the pure, bright mind. As he dwells thus, diligent, ardent, and resolute, whatever memories and intentions connected with the household life there may be are abandoned. With their abandoning, his mind (citta) becomes steadied internally, settles down, becomes unified, and becomes concentrated (samādhi). Thus too, bhikkhus, a bhikkhu develops mindfulness directed to the body (kāyagatā sati).
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.