Book excerpt: This book presents a modification of the dialectical method of Jean-Paul Sartre as a tool for critical discourse on aesthetic experience. Three practical demonstrations are offered of the modified progressive-regressive method: (1) on the original location and function of a medieval altarpiece, (2) on a theme in the literature of the Marquis de Sade, and (3) on a theory of consciousness in a novel by Samuel Beckett. The study concludes with guidelines on how the method may enhance critical discourse in teaching.