An ancient race known as the Vanar, the deities of Aies Mara are actually sentient aspects of Order born in opposition the sentient aspects of Chaos, otherwise known as the Aesar.
Originally born without form or personality, the Vanar were not, but the living desire to bring order to the universe. It was not until after The First Creation that the Vanar began to develop their individual views and personalities which eventually became manifest in their chosen forms and power of dominion.
For example, Astara came to believe that perfection is expressed best through beauty and the fiery passion of Love. It was thus she took the form of a breathtaking beauty skilled beyond all mortals in the arts of romance and love-making. She blesses those in Love and those dedicated to the making of beautiful art. On the other hand, Gurzil, whos belief in the strength to take what you want and the ability to destroy what is weak and unneeded is true perfection, took the form of a mighty Orc warrior of insurmountable strength and power. He blesses only those who destroy all that stands in their way and conquers all he sees.