This chapter situates the book in the recent and ongoing revival of interest in Bergson's philosophy. It spells out its ambition, which is to contribute to the renewal by offering an interpretation of Bergsonism that either corrects or avoids the misunderstandings and reductionisms responsible for the decline. It proposes that time, understood as duration, that is, as prolongation rather than as passing, when taken seriously, unravels the originality and problem-solving ability of Bergsonism. What else does this notion of time convey but a self-overcoming reality such that it excludes negativity? The chapter then provides a taste of this new reading by offering a summary of each chapter.