Rishi

The Post-Vedic tradition of Hinduism regards the rishis as "great yogis" or "sages" who after intense meditation (tapas) realized the supreme truth and eternal knowledge, which they composed into hymns.

[1] The term appears in Pali literature as Ishi; in Buddhism they can be either Buddhas, Paccekabuddhas, Arahats or a monk of high rank.

[5] Monier-Williams also quotes Tārānātha who compiled the great (Sanskrit-to-Sanskrit) dictionary named "ṛṣati jñānena saṃsāra-pāram" (i.e., "one who reaches beyond this mundane world by means of spiritual knowledge").

Yet the Indo-European dictionary of Julius Pokorny connects the word to a PIE root *h3er-s meaning "rise, protrude", in the sense of "excellent" and thus cognate with Ṛta and right and Asha.

In Sanskrit, forms of the root rish become arsh- in many words, (e.g., arsh) Modern etymological explanations such as by Manfred Mayrhofer in his Etymological Dictionary[7] leave the case open, and do not prefer a connection to ṛṣ "pour, flow" (PIE *h1ers), rather one with German rasen "to be ecstatic, be in a different state of mind" (and perhaps Lithuanian aršus).

[8] Post-Vedic tradition regards the Rishis as "sages" or saints, constituting a peculiar class of divine human beings in the early mythical system, as distinct from Asuras, Devas and mortal men.

"[9] The Rig Veda mentions female rishikas such as Romasha, Lopamudra, Apala, Kadru, Visvavara, Ghosha, Juhu, Vagambhrini, Paulomi, Yami, Indrani, Savitri and Devayani.

Amarakosha[11] (the famous Sanskrit synonym lexicon compiled by Amarasimha) mentions seven types of riṣis : Shrutarshi, Kāndarshi, Paramarshi, Maharshi, Rājarshi, Brahmarshi and Devarshi.

Amarakosha strictly distinguishes Rishi from other types of sages, such as sanyāsi, bhikṣu, parivrājaka, tapasvi, muni, brahmachāri, yati, etc.

The Buddhist text, Mahamayuri Tantra, written during 1–3rd centuries CE, mentions Rishis throughout Jambudvipa (modern day India, Pakistan, Afghanistan, Bangladesh, Nepal) and invokes them for the protection of the Buddhadharma.

[citation needed] Rishi Akkhata(Pali; Sanskrit: Agastya), known as Phra Reusi Akkhot in Thailand, is an important Ruesi in Southeast Asia, as in the Buddhist Jataka scriptures, this Ruesi is mentioned as the bodhisatta and practiced his ascetism in Sri Lanka and Southeast Asia.