In Esoteric Buddhism， a sign of the wisdom of all buddhas， a triangle on a lotus in the garbhadha^tu man!d!ala （Skt. sarvatatha^gata-jn~a^na-mudra^; Tib. de-bshin-g/seg s-pa thams-cad kyiye-/ses kyi phyag-rgya）. ［大日经］