The rule of Three :

[caption id="" align="aligncenter" width="583"] Indian Devas and Greek Gods[/caption] In the Hindu Mythology there are three most powerful gods Shiva, Vishnu and Brahma. They are considered above all the other gods and are feared by everyone. They were the rulers of the universe. Brahma is known as the creator of the Universe, Vishnu as the preserver of the world and civilization and, Shiva as the Destroyer who keeps the balance between the good and evil. Similarly, in Greek Mythology, the pantheon had three most powerful gods who overthrew their father to become the ultimate rulers. Zeus or the God of Thunder and lightning, created humans. Poseidon is also known as the God of the Seas. Hades was tricked by his brothers and is considered the ruler of the underworld.