首楞嚴義疏注經 1.123

1.123

歸園既畢，主伴咸臻，於此之際，故曰于時。佛頂，體也，寂無相故。光明，相也，具性德故。蓮華，用也，成萬行故。化佛，果也，理智行三所成就故。宣神呪者，自果既圓，說利他故。又釋迦顯果海無說，頂光蓮現表大定智悲三法冥熏而起大用，故現化佛說神呪也。

"Having returned to the park, host and retinue all assembled; at this juncture, it therefore says 'at that time'. The Buddha's crown is the substance, because it is tranquil and markless. The radiant light is the mark, because it possesses the qualities of the nature. The lotus flower is the function, because it accomplishes the myriad practices. The transformation Buddha is the fruit, because he is accomplished by the three of principle, wisdom, and practice. Proclaiming the divine mantra is because, his own fruition being already complete, he speaks it to benefit others. Furthermore, Śākyamuni shows that the ocean of fruition is beyond speech; the crown's light and the manifestation of the lotus represent the three dharmas of great concentration, wisdom, and compassion secretly perfuming and giving rise to great function; hence he manifests the transformation Buddha to speak the divine mantra.