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Grammatical Analysis

Sotāpanna: [m.; f.] a stream-enterer. Formed by sota (stream, current) + āpanna (entered, gone into). It signifies one who has stepped irreversibly into the current of the Noble Eightfold Path that flows straight to the ocean of Nibbāna.

Orthodox Definition

A Sotāpanna is the first of the four noble disciples (ariya-puggala) on the path to final liberation. This attainment marks the definitive transition from a worldly worldling (puthujjana) into the noble lineage (ariya-saṅgha).

Stream-entry is achieved at the precise moment when insight meditation matures to directly glimpse Nibbāna for the first time, completely shattering the first three of the ten fetters (saṃyojana):

  1. Sakkāya-diṭṭhi: Identity view or the illusion of a permanent soul/self inside the five aggregates.
  2. Vicikicchā: Skeptical doubt regarding the Buddha, Dhamma, Saṅgha, and the efficacy of the training.
  3. Sīlabbata-parāmāsa: Attachment to empty rites, rituals, or superstitious practices as sufficient means for purification.

An orthodox Sotāpanna possesses unshakeable conviction (aveccappasāda) in the Triple Gem and holds unbroken, perfect moral virtue (sīla). A Stream-enterer can never again be reborn in any of the lower planes of misery (apāya) and is absolutely guaranteed to attain final Arahatship within a maximum of seven lifetimes (sattakkhattuparama).

Quote

sahāvassa dassanasampadāya, tayassu dhammā jahitā bhavanti;
sakkāyadiṭṭhi vicikicchitañca, sīlabbataṃ vāpi yadatthi kiñci.
Together with his attainment of vision, three things are abandoned: self-identity view, doubt, and whatever adherence to rites and rituals there may be.

catūhapāyehi ca vippamutto, chaccābhiṭhānāni abhabba kātuṃ;
idampi saṅghe ratanaṃ paṇītaṃ, etena saccena suvatthi hotu.
He is also completely freed from the four states of woe, and incapable of committing the six heinous crimes. This excellent jewel is in the Saṅgha. By this truth, may there be well-being!

— Suttanipātapāḷi (Ratana Sutta, Sn 2.1)

ayampi kho, mahānāma, puggalo parimutto nirayā parimutto tiracchānayoniyā parimutto pettivisayā parimutto apāyaduggativinipātā.
This person, Mahānāma, is also freed from hell, freed from the animal realm, freed from the realm of hungry ghosts, freed from states of woe, bad destinations, and perdition.

— Saṃyutta Nikāya (Paṭhamasaraṇānisakka Sutta, SN 55.24)

Textual References

  • Sutta: Suttanipāta (Ratana Sutta, Sn 2.1) – Outlining the traits of a Stream-enterer and their definitive abandonment of the first three fetters.
  • Sutta: Paṭhamasaraṇānisakka Sutta (SN 55.24) – Emphasizing the absolute certainty of a Sotāpanna’s destiny and their safety from lower realms.
  • Abhidhamma: Puggalapaññatti (Treatise on Individuals) – Detailed categorization of the classes of Stream-enterers.
  • Commentary: Sāratthappakāsinī (Commentary on the Samyutta Nikaya stream-entry sections).

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