Aparmita is the name given to Amitabha in his character of bestower of longevity. Aparmita may be turned either a “Crowned Buddha or a Bodhisattva and is therefore richly clad and wears the thirteen ornaments.
Vajradhar is the primordial Buddha, the dharmakaya buddha. Vajradhar, depicted as dark blue in color, expresses the quintessence of buddhahood itself. Vajradhar represents the essence of the historical Buddha's realization of enlightenment.