There is no word on my heart's table except beloved's stature letter what should be done, my mentor has not taught me any other letterit is easily discernible that the innate idea of monotheism existed in India and Iran of the ancient time as reflected in Rig Vedas and Yasts of Avesta. However, one must set aside some of the prevailing prejudices in other to achieve this conclusion. Monotheism, according to Seyed Heidar Amoli, the Shia mystic of the eighth century hegira, may be divided into the divine and existential (or apparent and innate) one. We should not overlook the concept of intuitional monotheism or unity of witness, for we need these two concepts in the interpretation of Indian and Iranian monotheism.Attribution of polytheism or even henotheism to the people of ancient Iran and India is wrong, for according to the existing evidences, the intuitional monotheism does not leave any room for such attributions. There are clear distinctions between the gods of the polytheistic religion of the era of deterioration of ancient Rome and Greece and the Izads (Yazdans) of Iranian and Indian teachings. In fact, the idea of the presence of a single qiddity is present in the Yazdani tradition, Who is manifest in numerous Names.On the basis of a comparison inspired by Javidan Kherad (Eternal Wisdom), attempts have been made to discuss the development of dual names of "Varunah-Mitrah" in Veda and "Ahurah-Mitrah" in Kiumarthy teachings and "Ahura-Mazda" in Zoroastrian teachings. A reflection or reverberation of these two ancient names can be seen in the Persian translation "besmelah" which means the Compassionate the Merciful. This amazing expression is probably a heritage from a knowledgeable mystic like Salman Farsi.