Historical Vedic religion the central ideas and theosophy in the Vedas, and synergistically integrated new ideas. Of the major traditions that emerged from Brahmanism are the six "darshanas", particular the Vedanta, Samkhya and Yoga schools of Hinduism. Vedic religion was followed by Upanishads which gradually evolved into Vedanta, which is regarded by some as the primary institution of Hinduism. Vedanta considers itself "the purpose or goal [end] of the Vedas." There are some conservative schools which continue portions of the historical Vedic religion largely unchanged (see Śrauta, Nambudiri). Of the continuation of the Vedic tradition in a newer sense, Jeaneane D. Fowler writes
Ancient Iranian religion peoples are completely unknown except from the elements they have left Iranian religion which has no parallel with other Indo-European religions. The ancient Iranians believed in a cosmos which was a three-tiered structure. This structure consisted of the earth, the atmosphere, and the heaven above. Beyond heaven was the realm of Endless Lights while below the earth lay the realm of darkness and chaos. The earth rested on a cosmic sea called the Varu-Karta. In the earths centre was cosmic mountain Hara. Down the Hara flowed the river Ardvi. The earth divided into six continents surrounding the central continent. The