Hinduism Sutras, shastras, and smritisreligion

Toward the end of the Vedic period, and more or less simultaneously with the production of the principal Upanishads, concise, technical, and usually aphoristic texts were composed about various subjects relating to the proper and timely performance of the Vedic sacrificial rituals. These were eventually labeled Vedangas (“Studies Accessory to the Veda”).

The preoccupation with the liturgy gave rise to scholarly disciplines that were part of Vedic erudition. There were six such fields: (1) shiksa (instruction), which explains the proper articulation and pronunciation of the Vedic texts—different branches had different ways of pronouncing the texts, and these variations were recorded in pratishakhyas (literally, “instructions for the shakhas” [“branches”]), four of which are extant—(2) chandas (metre), of which there remains only one late representative; (3) vyakarana (analysis and derivation), in which the language is grammatically described—Panni’s grammar (c. 400 bce) and the pratishakhyas are the oldest examples of this discipline—(4) nirukta (lexicon), which discusses and defines difficult words, represented by the Nirukta of Yaska (c. 600 bce), (5) jyotisa (luminaries), a system of astronomy and astrology used to determine the right times for rituals, and (6) kalpa (mode of performance), which studies the correct ways of performing the ritual.

The texts constituting the Kalpa-sutras (collections of aphorisms on the mode of ritual performance) are of special importance. The composition of these texts was begun about 600 bce by Brahmans belonging to the ritual schools (shakhas), each of which was attached to a particular recension of one of the four Vedas. A complete Kalpa-sutra contains four principal components: (1) a Shrauta-sutra, which establishes the rules for performing the more complex rituals of the Vedic repertoire, (2) a Shulba-sutra, which shows how to make the geometric calculations necessary for the proper construction of the ritual arena, (3) a Grihya-sutra, which explains the rules for performing the domestic rites, including the life-cycle rituals (called the samskaras), and (4) a Dharma-sutra, which provides the rules for the conduct of life.

Society was ritually stratified in the four classes, each of which had its own dharma (law). The ideal life was constructed through sacraments in the course of numerous ceremonies, performed by the upper classes, that carried the individual from conception to cremation in a series of complex rites. The Grihya-sutras show that in the popular religion of the time there were many minor deities who are rarely mentioned in the literature of the large-scale sacrifices but who were probably far more influential on the lives of most people than were the great Vedic gods.