Indian religions Brahmanas and the older Upanishads (both presented as discussions on the rituals, mantras and concepts found in the four Vedas), which today are some of the most important canonical texts of Hinduism, and are the codification of much of what developed into the core beliefs of Hinduism. Some modern Hindu scholars use the "Vedic religion" synonymously with "Hinduism." According to Sundararajan, Hinduism is also known as the Vedic religion. Other authors state that the Vedas contain "the fundamental truths about Hindu Dharma" which is called "the modern version of the ancient Vedic Dharma" The Arya Samajis recognize the Vedic religion
Ancient Iranian religion sources on Iranian myths, both from indigenous texts and classical authors, originated after the emergence of Zoroastrianism, it is difficult to distinguish between myths that are Zoroastrian innovations from that those that are inherited. The fact that Zoroastrianism is heavily inspired by already existing ideas and has adapted from previous Iranian religions makes this discerning particularly hard. Like other ancient religions in general, Iranian religions did not have main collection of myth. Iranian myths are rather fragments from a diverse variety of myths that exhibit variations in common themes. There is a variant of the Noah's Ark myth in Iranian