Guru Rinpoche, or precious teacher, is commonly known as Padmasambhava - the 'lotus born'. Known as the second buddha who propagated the Buddhadharma throughout Tibet, he is considered the complete embodiment of all Buddhas of the three kayas.
This particular form of Guru Rinpoche is formally known as Nangsi Zilnon - one who prevails over all that appears and exists. His right hand bears the vajra in an extended way, holding it in a sacred gesture that tames the negative power of dualistic self-clinging. In his left hand he holds a skull cup, or kapala, with a longevity vase inside, while cradling a trident, or khatvanga in his left arm.