The Buddha’s speech is said to have sixty aspects and sometimes sixty-four. The list of sixty, as given in Maitreyanātha’s Mahāyāna­sūtrālaṃkāra, are (1) ripening, (2) smooth, (3) direct, (4) cogent, (5) correct, (6) stainless, (7) clear, (8) harmonious, (9) proper, (10) undefeatable, (11) meaningful, (12) taming, (13) gentle, (14) kind, (15) completely taming, (16) pleasing, (17) refreshing, (18) soothing, (19) gladdening, (20) blissful, (21) fulfilling, (22) worthwhile, (23) meaningful, (24) comprehensive, (25) reassuring, (26) inspiring, (27) enlightening, (28) instructive, (29) logical, (30) pertinent, (31) exact, (32) powerful, (33) fearless, (34) unfathomable, (35) majestic, (36) melodious, (37) sustaining, (38) long-lasting, (39) auspicious, (40) authoritative, (41) exhortative, (42) selfless, (43) confident, (44) omniscient, (45) whole, (46) complete, (47) certain, (48) desireless, (49) exhilarating, (50) pervasive, (51) stimulating, (52) continuous, (53) consistent, (54) multilingual, (55) adaptive, (56) reliable, (57) timely, (58) calm, (59) pervasive, and (60) perfecting.

The Buddha’s speech is said to have sixty aspects and sometimes sixty-four. The list of sixty, as given in Maitreyanātha’s Mahāyāna­sūtrālaṃkara, are (1) ripening, (2) smooth, (3) direct, (4) cogent, (5) correct, (6) stainless, (7) clear, (8) harmonious, (9) proper, (10) undefeatable, (11) meaningful, (12) taming, (13) gentle, (14) kind, (15) completely taming, (16) pleasing, (17) refreshing, (18) soothing, (19) gladdening, (20) blissful, (21) fulfilling, (22) worthwhile, (23) meaningful, (24) comprehensive, (25) reassuring, (26) inspiring, (27) enlightening, (28) instructive, (29) logical, (30) pertinent, (31) exact, (32) powerful, (33) fearless, (34) unfathomable, (35) majestic, (36) melodious, (37) sustaining, (38) long-lasting, (39) auspicious, (40) authoritative, (41) exhortative, (42) selfless, (43) confident, (44) omniscient, (45) whole, (46) complete, (47) certain, (48) desireless, (49) exhilarating, (50) pervasive, (51) stimulating, (52) continuous, (53) consistent, (54) multilingual, (55) adaptive, (56) reliable, (57) timely, (58) calm, (59) pervasive, and (60) perfecting.

There are slightly varying lists of the sixty qualities or aspects of the buddha’s voice. Often an additional four are added, extending the list to sixty-four. One such canonical source for the list can be found in the Tathāgatācintya­guhya­nirdeśa­sūtra (Toh 47), UT22084-039-003-476. This list is further elaborated by Daśabalaśrīmitra in the Saṃskṛtāsaṃskṛta­viniścaya (Toh 3897), folio 306.a.