Japanese Buddhist funeral custom developed a distinctive practice not found in the same form elsewhere in the Buddhist world: the deceased is given a posthumous ordination name, a kaimyo, bestowed by the officiating priest as part of the funeral rite, a practice generally explained as symbolically ordaining the deceased into the monastic life at the point of death and, in some traditional accounts, as a way of separating the dead from their living name so that they are less easily called back or troubled by those left behind, though families today generally understand the name chiefly as a mark of the deceased's new status and the funeral's religious character rather than a literal safeguard.
Theravada Buddhist funeral custom in Southeast Asia developed its central merit generating gesture differently, focusing on formal offerings of robes, food, and other requisites to the monastic community in the deceased's name, with monks chanting specific merit transferring formulas over the offering, a mechanism that ties the funeral's central religious act directly to the ordinary economy of lay support for monastics that structures Theravada Buddhist life more broadly, rather than to a posthumous naming rite. Both practices serve the same underlying purpose of directing merit toward a favorable rebirth for the deceased, but they route that purpose through markedly different ritual mechanisms shaped by each tradition's own historical development.