KashyapaKashyapa (, ) is a revered Vedic sage of Hinduism. He is one of the Saptarishis, the seven ancient sages of the Rigveda. Kashyapa is the most ancient and venerated rishi, along with the other Saptarishis, listed in the colophon verse in the Brihadaranyaka Upanishad. Kashyapa is an ancient name, referring to many different personalities in the ancient Hindu and Buddhist texts. The place Kashmir is named after him, as well as numerous other Sanskrit texts and Indian scriptures. Kashyapa means "turtle" in Sanskrit.
SaptarshiThe Saptarshi (सप्तर्षि) are the seven Brahmins of ancient India who are extolled in the Vedas, and other Hindu literature. The Vedic Samhitas never enumerate these rishis by name, although later Vedic texts such as the Brahmanas and Upanisads do so. An early prototype of the "Saptarishi" concept may stem from the six families associated with the six "Family Books" in the Rigveda Samhita (Mandalas 2–7 in ascending order: Gṛtsamāda, Viśvāmitra, Vāmadeva, Atri, Bhardwaja, Vasiṣṭha).
VishvamitraVishvamitra (विश्वामित्र, ) is one of the most venerated rishis or sages of ancient India. He is one of the seven Brahmarshi. According to Hindu tradition, he is stated to have written most of the Mandala 3 of the Rigveda, including the Gayatri Mantra (3.62.10). The Puranas mention that only 24 rishis since antiquity have understood the whole meaning of —and thus wielded the whole power of — the Gayatri Mantra. Vishvamitra is supposed to have been the first, and Yajnavalkya the last.
RishiIn Indian religions, a rishi (ऋषि) is an accomplished and enlightened person. They find mentions in various Vedic texts. Rishis are believed to have composed hymns of the Vedas. 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. The term appears in Pali literature as Ishi and in Buddhism, they can be either Buddhas, Paccekabuddhas, Arahats or a monk of high rank.