Zarasthura is a sage and a prophet who loves humanity. As he loves humanity, he desires to leave the solitude of his mountain home to give lessons to the human beings about the great truth he had discovered, that was the truth of one god. He went to the human beings and told them that god does not exist and all human beings should strive for over man who can show them the actual path of living peaceful life. In the initial stage, people reject his theory but later on he found followers who followed his lessons and started to listen to his teachings.

Ahura mazda is also known as Ahuramazda, Harzoo, Hormazd, Hourmazd, Hurmuz it is considered as the lord of spirit. It is the highest spirit that was worshipped in Zoroastrianism, the ancient Mede and Persian people used to worship Ahura Mazda before the era of Christianity. It was believed that Ahura Mazda is the creator of the world and all the materials in it being at the same time wise and good.

There are many lists of titles and characteristics of Ahura Mazda. He is the supreme of all the gods in the heaven, the uncreated spirit. There is nothing in the universe beyond and apart from him. It was believed that Ahura Mazda is changeless and he cannot be moved but he can move nay thing at any time. He is unique and no one will be able to take away his place from the heaven. He helps human being who is gentle and maintains a simple life with out telling lies. Ahura mazda created two spirits one is destructive spirit named as Angra Mainyu and the good spirit known as Spenta Meynu.

Zoroastrianism is considered as the oldest method of monotheism in which the human beings believed that there is only one god in the world and he has the supreme power to control the entire world, although this concept is not accepted universally. It is very difficult to estimate the actual age of the religion but it was believed that the Zoroastrianism ranges from 6000 to 600 B.C.E that is for a period of 1000 years. Zoroastrianism was an effective religion and the most powerful in the Middle East and in the whole world.

Avesta is the main religious script of the Persians. The Avesta is a compilation from various sources and its different parts date from different periods and vary widely in character. The texts in the Avestran language were considered as the part of Avesta .The contents of Avesta are classified topically but they are not fixed or canonical. The Avesta can be classified into two groups the one liturgical and the other general.

As both Christianity, Islam and Judaism were founded after the Zoroastrianism, all these religions are very much influenced by the principles of Zoroastrianism. Like Zoroastrianism, all these three religions have the faith that there is only one god and that god creates the entire world and controls the entire universe.