The Three Doors of oṃ āḥ hūṃ

This syllabic triptych is a central feature of Tibetan Buddhist practice. In classical Buddhist terminology these three syllables are commonly referred to as the The Three Doors which correspond to the three primary chakras located at the head, throat, and heart.

The three seed syllables, with their own aura sphere of coloured light, are placed in a vertical arrangement corresponding to the physical form and activity of body, speech and mind – 

a white oṃ, of the head chakra སྤྱི་བོར་ཨོཾ་དཀར་པོ།

a red āḥ of the throat chakra མགྲིན་པར་ཨཱཿདམར་པོ།

and a blue hūṃ of the heart chakra ཐུགས་ཁར་ཧཱུྃ་སྔོན་པོ།

All three of which are described as radiating their respective colours with a luminous, translucent rainbow-like quality. These three dimensions equate to the total media through which we interact with our world, by which we either create negative or positive progress in or out of cyclic existence “samsara”.

The small Petsug calligraphy below translates as:

All phenomena are included in the three vajras of enlightened body, speech and mind. The meaning of this is realised by resting in the equality of the three doors.

ཆོས་ཐམས་ཅད་སྐུ་གསུང་ཐུགས་རྡོ་རྗེ་རྣམ་པ་གསུམ་དུ་འདུས་པར་བསྟན་པ་སྟེ། དེའི་དོན་སྒོ་གསུམ་མཉམ་པ་ཉིད་དུ་བཞག་པས་རྟོགས་པར་བྱ་བའི་ཕྱིར་རོ༎

From The śrīguhyasamājatantropadeśasāgarabindu དཔལ་གསང་བ་འདུས་པའི་རྒྱུད་ཀྱི་མན་ངག་གི་རྒྱ་མཚོ་ཐིགས་པ།