佛頂尊勝陀羅尼經教跡義記 2.81

2.81

唐云最勝最勝。即是殊勝，即是真俗二諦法門也。解曰：重言最勝最勝者，前云顯現即是真如也。此明二門，根本智、後得智。為後得達俗、根本證真，自利利他，故言最勝。又解：真言行者修此觀門，事理加持故言最勝。緣此佛頂，能摧四魔得免諸災，故言最勝。如經所說「却後七日必當命終」，應生不生、應死不死，即蘊死二魔現成超也。修持不間，魔境不侵、煩惱頓除，復超後二也。

In Chinese it means: "Most supreme, most supreme." That is, extraordinary; that is, the Dharma gate of the two truths, ultimate and conventional. The explanation states: The repetition of the words "most supreme, most supreme" follows the earlier "becoming manifest," which is true suchness. This clarifies two gates: fundamental wisdom and subsequently attained wisdom. Because the subsequently attained penetrates the conventional, and the fundamental realizes the true, benefiting both oneself and others, it is said to be "most supreme." Another explanation: When the mantra practitioner cultivates this contemplation gate, there is empowerment in both principle and phenomena, hence it is said to be "most supreme." Because this uṣṇīṣa can destroy the four māras and allow one to escape all calamities, it is said to be "most supreme." As the sūtra states, "After seven days you will surely die"; that which ought to be born is not born, that which ought to die does not die, which is the immediate transcendence of the skandha-māra and the mṛtyu-māra. If one practices and holds it without interruption, the demonic realms cannot encroach, afflictions are severed頓, and one further transcends the latter two.