佛頂尊勝陀羅尼經教跡義記 2.77

2.77

唐云遍淨也。又云真實，即是遍滿清淨也。解曰：人天福行皆有限量，雜業為因，皆招虛幻，豈同密教神力加持真實，普緣皆遍清淨也。又解：怛闥者，如如也，二心不生分別情息，真言智證名相皆如，心如色如，故重呼之也。又解：真實遍滿清淨者，此明心之實性非內非外，隨薰習力似內外現，即迷心外執緣生法，妄成遍計空華夢等，如觀銅體不遍鏡外之像，以鏡外無像不可執其實有，以心之實性不礙緣生智鑒照然，故云遍滿清淨也。問曰：「體自如如，云何妄想？」答曰：「匠成於器而非匠名，而器不能自成，必有為器主，匠雖非器，豈無為匠之功？成於器，功歸於匠，妄心既謝，還歸清淨也。」

In Chinese it means: "Universally pure." It also means: "Real," which is to say "completely and universally pure." The explanation states: The meritorious practices of humans and gods are all limited; taking mixed karma as their cause, they all incur illusion; how could they compare to the empowerment of the esoteric teaching's supernatural power, which is real, universally conditioned, and everywhere pure? Another explanation: Tathā means "suchness"; the two minds do not arise, discriminatory passions cease, and in the wisdom-realization of the mantra, names and marks are both such; mind is such, form is such; hence it is invoked repeatedly. Another explanation: As for "real and completely and universally pure," this clarifies that the true nature of the mind is neither internal nor external; conforming to the power of perfuming, it appears as internal and external; thus, being deluded about what is external to the mind, one clings to conditioned phenomena, falsely producing the parikalpita nature, like sky-flowers, dreams, and so forth; it is like viewing the substance of bronze which does not pervade the images outside the mirror—since there are no images outside the mirror, one cannot cling to them as truly existing; because the true nature of the mind does not obstruct conditioned arising, wisdom illumines clearly; hence it is said to be "completely and universally pure." Question: "If its essence is of itself suchness, how can there be false thoughts?" Answer: "The artisan creates the vessel, yet is not named the vessel; but the vessel cannot create itself, and must have a master who makes the vessel. Although the artisan is not the vessel, how could he lack the work of being an artisan? When it is formed into a vessel, the work belongs to the artisan; once false thoughts have subsided, one returns again to purity."