Vajrapani (phyag na rdo rje) http://www.wildmind.org/mantras/figures/vajrapani
Vajrapani (Holder of the Thunderbolt) represents the energy of the enlightened mind, and energy that breaks through delusion. He dances wildly within a halo of flames, which represent the transformative power of Awakening. He holds a vajra (thunderbolt) in his right hand, which emphasizes the power to cut through the darkness of delusion.
Enlightened beings do not, in reality, sit around all day on lotuses smiling serenely. The Buddha himself was fearlessly active in engaging with the other religious figures and philosophers of his day. His fearless approach to life is perhaps characterized mostly clearly by his encounter with Angulimala, who was an infamous bandit who killed his victims and added a finger from each to the garland he wore around his neck (his name means "Garland of Fingers"). Although warned to stay away from this dangerous figure, the Buddha insisted on going into the forest to confront Angulimala, who converted to Buddhism, became a monk, and eventually became Enlightened.