The Great Perfection of Aa
The central character illuminates pure white among aura like swirls spinning from blackness.
As this is the root syllable Aa ཨ་ in the classical Uchen script, being the essential letter and sound of all the other letters Tibetan alphabet. – It is for the Dzongchenpa’s considered representing the pure and stainless ‘great perfection’, the ultimate true nature of mind, which is equalled in all beings.
The lower line of calligraphy in the Tibetan Petsug script translates as:
The ultimate true nature of the uncontrived great perfection that is embodied and expressed in the sound of the essential syllable Aa