楞伽阿跋多羅寶經註解 3.39

3.39

四等者，字、語、身、法四皆平等也。字等者，謂我名佛，一切如來亦名為佛，佛名無別，是為字等也。語等者，謂我作六十四種梵音聲語，一切諸佛亦然，是名語等。《密跡力士經》第二說佛聲有八轉，謂體、業、具、為、從、屬、於、呼，是八轉聲各具八德，所謂調和聲、柔軟聲、諦了聲、易解聲、無錯謬聲、無雌小聲、廣大聲、深遠聲，八八即成六十四種。頻伽即鳥名，其聲清雅，超於眾鳥，故引以喻也。身等者，謂我與諸佛法、報、應化之身等無差別，雖機不等，應跡或殊，會其歸趣亦一而已。法等者，謂所得道品之法與諸佛無殊也。言無障礙智者，謂得是四等，則於一切佛法無所障礙，亦不迷於如來化跡同異也。

"Four equalities": syllables, words, bodies, and dharmas are all four equal. "Equality of syllables" means that my name is Buddha, and all Tathāgatas are also named Buddha; the Buddha-name has no distinction, which is equality of syllables. "Equality of words" means that I produce sixty-four kinds of Brahmā-voice sounds and speech, and all Buddhas do likewise; this is called equality of words. The second roll of the Guhyakādhipatinirdeśa Sūtra says that the Buddha's voice has eight inflections, namely nominative, accusative, instrumental, dative, ablative, genitive, locative, and vocative; each of these eight inflections possesses eight virtues, namely harmonious voice, gentle voice, clear voice, easily understood voice, non-erroneous voice, non-effeminate voice, vast voice, and deep-resonant voice. Eight times eight makes sixty-four kinds. Viṅka is the name of a bird; its voice is pure and elegant, surpassing all birds, so it is cited as a simile. "Equality of bodies" means that between my and the Buddhas' dharma, reward, and response-transformation bodies there is no distinction; although capacities are unequal and response traces may differ, their final convergence is just one. "Equality of dharmas" means that the dharmas of the path-factors attained are no different from those of all Buddhas. Speaking of "unobstructed wisdom" means that when one attains these four equalities, one is unobstructed with respect to all Buddha-dharmas, and is not deluded about the identity and difference in the Tathāgata's transformative traces.