In religious field, Dayanand Saraswati not only made efforts to reform the faults which had got imbibed in Hindu religion along with lapse of time, but he also exposed evils prevalent in christainity and Islam. Dayanand Saraswati regarded the Vedas to be the actual basis of Hinduism. While believing in pure Vedic tradition, he gave the slogan – Back to the Vedas’.

He believed the Vedas to be inspired by God. Along with regarding the Vedas to be divinely knowledge, he said that the interpretation of Vedic mantras should be done rationally on the basis of factual evidence. He argued that the language of the Vedas is very ancient.

Dayanand and Arya Samaj did not believe in polytheism, anthropomorphism, idol worship, animal sacrifice etc. He opposed religious rituals and superitions. He regarded God as shapeless, Omnipotent and ubiquitious. Through ‘Shuddhi movement, Arya Samaj purified the converted Hindus and reunited them in their native religion.