Knight of the Living Dead reveals a correlation between Blake's textual activities and his spiritualistic practices. It shows how his disregard for conventional aesthetic parameters corresponds to his alleged trespassing into the hereafter. It contends that by treating spiritualism as an aesthetic practice and aesthetic activity as an otherworldly communication, Blake undermines the institutionalized boundaries in art and life, and presents a formidable challenge to the whole matter/spirit dualism upon which Western culture is based.