The warrior guardian of esoteric Buddhism and mountain ascetics, Fudō Myō-ō—Immovable Wisdom King—is known as the enforcer deity, the protector of Buddhism and the destroyer of the illusions of life. With a glaring countenance, Fudō Myō-ō (Acala Vidyaraja) guides us in achieving a mind that is unaffected by desires and the carnal temptations of life. As a messenger of Dainichi Nyorai (Cosmic Buddha), Fudō grasps the devil-slaying sword (gōma no ken) in his right hand, which symbolizes wisdom cutting through ignorance, while in his left hand the rope (kensaku) catches and binds the demons of desire, the obvious as well as the unseen.

Fudō Myō-ō is the best known and the central figure of the Godai Myō-ō—the Five Great Wisdom Kings. The other four are: Gozanze (East), Gundari (South), Daiitoku (West), and Kongo Yasha (North). Just as Mikael has two assisting warrior angels, eight child attendants often assist Fudō. The two most common that attend Fudō are Kongara and Seitaka.

Fudō Myō-ō is the purifier of our minds and hearts. Though compassionate, Fudō-inu Myō-ō (Immovable and Wrathful Mantra King) is the wrathful manifestation of Dainichi Nyorai. In some corners, he is considered the angry myō-ō. This is not the anger of emotional attachment to past chaos, but the anger of injustice and inequity—the anger that motivates us to right the wrongs, to lasso and bind the righteous ones who cause the destruction of order, the earth and other sentient beings. This is the passion of movement from an immovable place. This is the volcanic wrath that gives birth to new life.

Fudō’s façade is fierce; a scowling grimace shadowing the eyes, one eye wide open and one half closed. His teeth are canine; one large fang pointing up and one pointing down. Eyes and teeth symbolize the sun and the moon, heaven and earth. And his hair, knotted in the way of the servant, signifies his service to Dainichi Nyorai and to all beings. But why the face of fury? Could it be to shake us up out of our spiritual complacency?

Steadfast in his determination to save sentient beings, Fudō Myō-ō guides us onto the path of self-control by cutting through the illusionary mind with his wisdom sword. And with his rope, he binds the un-serving passions that lead all astray. Fudō, as an unwavering state of enlightenment, is portrayed surrounded by flames that bring light and purification to the darkness of the deluded mind. And lastly, and possibly most importantly, he usually sits or stands on a flat rock symbolizing the concept of fudōshin —immovable mind, which eventually leads to fudōchi—immovable heart wisdom.

As I mentioned before, Fudō Myō-ō is the guardian of mountain ascetics—the yamabushi. These purveyors of power look to Fudō for their protection and knowledge. Suffering through cold-water austerities (misogi), which is one source of their power, the yamabushi see Fudō as a symbol of the generation of inner or internal heat—the key to spiritual power and enlightenment.