Historical Vedic religion from c. 500 BCE, declined in India over the 5th to 12th centuries in favor of Puranic Hinduism and Islam. Historical Vedic religion The historical Vedic religion (also known as Vedism, Brahmanism, Vedic Brahmanism, and ancient Hinduism) refers to the religious ideas and practices among Indo-Aryan-speaking peoples of ancient India after about 1500 BCE. These ideas and practices are found in the Vedic texts, and they were one of the major influences that shaped contemporary Hinduism. According to the "Encyclopædia Britannica", in the Hindu tradition and particularly in India, the Vedic religion is considered to be a part of Hinduism.
Is Religion Dangerous? surveys suggesting a strong link between faith and altruism. He cites extensive studies to show that there is little or no evidence that religion ever causes mental disorders, and that overall religion is a positive contributor to mental health. He specifically addresses and rebuts the claim that religious belief is a delusion. He quotes the definition in the "Oxford Companion to Mind" as "a fixed, idiosyncratic belief, unusual in the culture to which the person belongs" suggesting that "most great philosophers have believed in God", and that the many religious people who exhibit a high degree of rational ability "...