[422] Which phenomena (dhammā) are indeterminate (abyākata)?
On the occasion when one develops the supramundane (lokuttara) jhāna — leading out [of the round], going to the dismantling [of the round] — for the abandoning of views (diṭṭhigata), for the attainment of the first plane (bhūmi), and, quite secluded from sensual pleasures, … one enters upon and dwells in the first jhāna, of painful practice and sluggish direct knowledge (dukkhāpaṭipadā dandhābhiññā): on that occasion there is contact (phassa) … there is non-distraction (avikkhepa) … These phenomena are wholesome (kusala). As the result (vipāka) of that very supramundane wholesome jhāna's having been done, having been developed: quite secluded from sensual pleasures, … one enters upon and dwells in the first jhāna, of painful practice and sluggish direct knowledge, which is emptiness (suññata): on that occasion there is contact … there is the faculty of perfect knowledge (aññindriya) … there is non-distraction … These phenomena are indeterminate.
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.