He will attain arhatship immediately after rebirth or within the first half of his life in the Pure Abodes. Such a being is called "one who reaches Nibbāna within the first half of the life" (Sanskrit: antarāparinirvāyin; Pali: antarā-parinibbāyī).
He will attain arhatship within the latter half of his life in the Pure Abodes or at the moment of death. Such a being is called "one who reaches Nibbāna after crossing half the life-time" (Sanskrit: upapadyaparinirvāyin; Pali: upahacca-parinibbāyī).
He exerts himself to the point of attaining arhatship. Such a being is called "one who reaches Nibbāna with exertion" (Sanskrit: sābhisaṃskāraparinirvāyin; Pali: sasankhāra-parinibbāyī).
He does not exert himself, yet attains arhatship. Such a being is called "one who reaches Nibbāna without exertion" (Sanskrit: anabhisaṃskāraparinirvāyin; Pali: asankhāra-parinibbāyī).
He traverses the five heavens of the Pure Abodes in order from lowest to highest before attaining arhatship. Such a being is called "one who passes up-stream to the highest gods" (Sanskrit: ūrdhvasrotas; Pali: uddhamsota-akanittha-gāmī)."
Anāgāmins in literature
Several figures who appear in the literature achieve the state of an anāgāmin. Some of these people include:
^Karashima, Seishi; Vorobyova-Desyatovskaya, Margarita I., eds. (2015). "The Avadāna Anthology from Merv, Turkmenistan"(PDF). Buddhist Manuscripts from Central Asia: The St. Petersburg Sanskrit Fragments (StPSF). Tokyo: The Institute of Oriental Manuscripts of the Russian Academy of Sciences; The International Research Institute for Advanced Buddhology; Soka University. 1. Retrieved 2019-10-25.