In its ritual form Asha becomes the principle of sacrifice, and hence of holiness, first ritual and then moral.
Zend asha for Sanskrit tha, Old Persian aria (in dy taxerxes); fravashi for Pahlavi fravardln, New Persian ferrer tn ie spirits of the dead).
But the idea of Law was generalized in the figure of Rita (what is " fitted " or " fixed "; or the " course " or " path " which is traversed), whose Zend equivalent asha shows that the conception had been reached before the separation of the Eastern Aryans produced the migrations into India and Iran.'
The fundamental idea remains the same in the Zend Asha, its philological counterpart, but it is applied with a difference.
Its form is more personal, for Asha is one of the six Holy Immortals round the throne of Ahura Mazda (Auramazda).