a mo gha si ddhi
Amoghasiddhi occupies the northern quarter of the mandala. He is depicted as a Bhikṣu, and is deep green in colour. His name means infallible (amogha) success (siddhi). Amoghasiddhi is the head of the karma family in the Five Buddha Mandala.
Amoghasiddhi's emblem is the double vajra - a mysterious symbol which is two five pointed vajras arranged in a cross. His mudra is Abhaya or Fearlessness. Abhaya can also mean "no danger". Amoghasiddhis is associated with the Tantric Rite of Fearlessness, and with success or siddhi.
Like his counterpart Ratnasambhava he first appears in the Sarvatathāgata Tattvasaṃgraha Tantra in the late 7th or early 8th century. His name means "unfailing accomplishment".
mandala of the jinas
|position in mandala
|All accomplishing Wisdom
Bodhisattvas: Green Tārā
Seed SyllableAmoghasiddhi's bīja mantra is āḥ - the long ā plus the visarga or aspiration.
Tibetan - Uchen
oṃ a mo gha si ddhi āḥ hūṃ
oṃ amoghasiddhi āḥ hūṃ
For more on the role of Amodhasiddhi and Ratnasambhava in the Mandala of the Jinas try my essay: Ratnasambhava quest que cest?