Working actively in the 1960's as a member of the group Fluxus, who performed events and happenings as a means of expression, she later brought out works with strong conceptual elements that would stimulate the audiences' imagination and have them take part.
This is a work sending a message of peace directly to people's minds in a quiet atmosphere, based on the assumption that "the four bodies in B.P. 50 are to be unearthed around A.P. (after peace is established) 100 with their frozen dreams and memories on D Continent."