Dighanikaya 2.226

2.226

So vivicceva kāmehi…pe… paṭhamaṃ jhānaṃ upasampajja viharatītiādi pana upacārasamādhinā samāhite citte uparivisesadassanatthaṃ appanāsamādhinā samāhite citte tassa samādhino pabhedadassanatthaṃ vuttanti veditabbaṃ. Imameva kāyanti imaṃ karajakāyaṃ. Abhisandetīti temeti sneheti, sabbattha pavattapītisukhaṃ karoti. Parisandetīti samantato sandeti. Paripūretīti vāyunā bhastaṃ viya pūreti. Parippharatīti samantato phusati. Sabbāvato kāyassāti assa bhikkhuno sabbakoṭṭhāsavato kāyassa kiñci upādinnakasantatipavattiṭṭhāne chavimaṃsalohitānugataṃ aṇumattampi ṭhānaṃ paṭhamajjhānasukhena aphuṭaṃ nāma na hoti.

The passage beginning, “Quite secluded from sensual pleasures … he enters and dwells in the first absorption,” should be understood to have been spoken for the purpose of showing higher distinction when the mind is concentrated through access concentration, and for the purpose of showing the distinction of that concentration when the mind is concentrated through absorption concentration. “This very body” means this physical body born of action. “He drenches” means he moistens, he permeates, he makes rapture and happiness prevail everywhere. “Surcharges” means he drenches all around. “Suffuses” means he fills it like a bellows with air. “Pervades” means he touches all around. “Of the entire body” means that for this monk, across his body endowed with all its parts, in any place where the continuum of clinging-derived materiality occurs, accompanying skin, flesh, and blood, there is not even an atom-sized spot untouched by the happiness of the first absorption.