[734] Therein, which is the first jhāna?
Here, on the occasion when a bhikkhu develops supramundane (lokuttara) jhāna — leading out (niyyānika), going to dismantling (apacayagāmī) — for the abandoning of wrong views (diṭṭhigata), for the attainment of the first plane (bhūmi): quite secluded from sensual pleasures … he enters and dwells in the first jhāna, of painful practice and sluggish direct knowledge (dukkhāpaṭipada-dandhābhiñña) — on that occasion there is contact (phassa) … there is non-distraction (avikkhepa) — these phenomena (dhammā) are wholesome (kusala).
As the result (vipāka) of that same supramundane wholesome jhāna having been done, having been developed: quite secluded from sensual pleasures … he enters and dwells in the first jhāna, of painful practice and sluggish direct knowledge, [and it is] emptiness (suññata) — on that occasion there is the five-factored jhāna: applied thought (vitakka), sustained thought (vicāra), rapture (pīti), pleasure (sukha), and one-pointedness (ekaggatā) of mind (citta). This is called the first jhāna. The remaining phenomena are associated (sampayutta) with the jhāna.
Therein, which is the second jhāna?
Here, on the occasion when a bhikkhu develops supramundane jhāna — leading out, going to dismantling — for the abandoning of wrong views, for the attainment of the first plane: with the stilling (vūpasama) of applied thought and sustained thought … he enters and dwells in the second jhāna, of painful practice and sluggish direct knowledge — on that occasion there is contact … there is non-distraction — these phenomena are wholesome.
As the result of that same supramundane wholesome jhāna having been done, having been developed: with the stilling of applied thought and sustained thought … the second jhāna … the third jhāna … the fourth jhāna … the first jhāna … he enters and dwells in the fifth jhāna, of painful practice and sluggish direct knowledge, [and it is] emptiness — on that occasion there is the two-factored jhāna: equanimity (upekkhā) and one-pointedness of mind. This is called the fifth jhāna. The remaining phenomena are associated with the jhāna.
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.