[447] And how does a bhikkhu dwell contemplating the mind (citta) in the mind both internally and externally?
Here a bhikkhu understands a mind with lust (sarāga) as 'a mind with lust'; he understands a mind without lust (vītarāga) as 'a mind without lust'; he understands a mind with hatred (sadosa) as 'a mind with hatred'; he understands a mind without hatred (vītadosa) as 'a mind without hatred'; he understands a mind with delusion (samoha) as 'a mind with delusion'; he understands a mind without delusion (vītamoha) as 'a mind without delusion'; he understands a contracted mind (saṅkhitta) as 'a contracted mind'; he understands a distracted mind (vikkhitta) as 'a distracted mind'; he understands an exalted mind (mahaggata) as 'an exalted mind'; he understands an unexalted mind (amahaggata) as 'an unexalted mind'; he understands a surpassable mind (sa-uttara) as 'a surpassable mind'; he understands an unsurpassable mind (anuttara) as 'an unsurpassable mind'; he understands a concentrated mind (samāhita) as 'a concentrated mind'; he understands an unconcentrated mind (asamāhita) as 'an unconcentrated mind'; he understands a liberated mind (vimutta) as 'a liberated mind'; he understands an unliberated mind (avimutta) as 'an unliberated mind'.
Thus a bhikkhu dwells contemplating the mind in the mind both internally and externally, ardent (ātāpī), clearly comprehending (sampajāno), mindful (satimā), having removed covetousness and grief regarding the world (abhijjhā-domanassa).
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.