Buddha Aparimita is very popular in bestowing long life upon the devotees. It is red in color. His two hands are in dhyana mudra and holds an ambrosia vase. He usually wears all the ornaments of different kinds peculiar to a Sambhogakaya Buddha. He is never depicted with any consort. He wears a crown and has Ushnisha and Urnakosh on his body.

Buddha Aparimita is invoked or worshipped for lengthening the life span or fast relief from dreadful diseases or from mortal danger. In Nepalese Mahayana tradition the dharani of Buddha Aparimita is often recited by the devotees in the presence of dying patients. the recitation of this dharani is said to be efficacious when carried out in utter sincerity. It is said that the famous Madhayamika Buddhist philosopher Arya Nagarjuna had escaped his early death after recitation of this dharani for one complete day and night.

Mantra of Amitayus