“Om Ah Hung Ney” are the three holiest sites of Guru Rinpoche since their names begin with the letters, Om, Ah, and Hung, which forms the Mantra, “Om Ah Hung”.
Omba Ney, the Taktsang of the East where Letter OM is seen
Omba Ney, the “Taktsang of East” is the first of three sacred sites of Guru Rinpoche in Trashiyantse where letter OM is seen on the rock face.