Acala (Skr.: Ācala, Achala अचल; Ja: Fudō-myōō (不動明王?) literally "immovable" one.) is one of fierce, angry-faced guardian deities of Vajrayana Buddhism, otherwise known as esoteric Buddhism (Ja: mikkyō (密教?)).
He is classed among the vīdyārāja (Ja: myōō ("wisdom king")), and preeminent among the Five Wisdom Kings of the Womb Realm. Accordingly, his figure occupies an important hierarchical position in the pictorial diagramatic Womb Mandala of the Two Realms.
Overview
Descriptions of his physical appearance derive from such scriptural source as the Mahavairocana Tantra (Ja: Dainichikyō (『大日経』?)) and its annotation.
