From Temple Edict to Family Memorial

The butsudan's presence in nearly every traditional Japanese home is partly the residue of a policy. From the seventeenth century the Tokugawa shogunate required every household to register with a Buddhist temple, a system aimed at rooting out hidden Christians that turned Buddhist affiliation into an instrument of civil administration. Registered families took on funerary and memorial obligations, and the home altar spread with them, making ancestor memorial the everyday face of Japanese Buddhism. That history gave the butsudan its double character: it is at once an altar to the Buddha of the family's sect and the seat of the family's own dead, and in practice the second role often leads. Rites at the altar mark the cycle of memorial anniversaries that can run for decades after a death, and the transfer of tablets into a new household's butsudan is part of how a family line is understood to continue.

Contemporary life has pressed on the institution. Urban apartments favor compact modern designs over the great gilded cabinets of rural houses; some households keep none at all, and temples now receive aging butsudan for ritual disposal when a family line ends or a house is cleared. Scholars such as Ian Reader and George Tanabe nonetheless describe the home altar as central to the practical religion of benefits and memorial that most Japanese actually live, whatever they profess when asked about belief.