The main objective of the Purva ("earlier") Mimamsa school was to establish the authority of the Vedas. Consequently this school's most valuable contribution to Hinduism was its formulation of the rules of Vedic interpretation. Its adherents believed that revelation must be proved by reasoning, that it should not be accepted blindly as dogma. In keeping with this belief, they laid great emphasis on dharma, which they understood as the performance of Vedic rituals. The Mimamsa accepted the logical and philosophical teachings of the other schools, but felt that these paid insufficient attention to right action. They believed that the other schools of thought, which pursued moksha(release) as their ultimate aim, were not completely free from desire and selfishness.

According to the Mimamsa, the very striving for liberation stemmed from a selfish desire to be free. Only by acting in accordance with the prescriptions of the Vedas could one attain salvation (rather than liberation). At a later stage, however, the Mimamsa school changed its views in this regard and began to teach the doctrines of God and mukti (freedom). Its adherents then advocated the release or escape of the soul from constraints through what was known as jnana (enlightened activity). While Mimamsa does not receive much scholarly attention these days, its influence can be felt in the life of the practising Hindu. All Hindu ritual, ceremony and religious law is influenced by it.