The scholarship of Jorge Ferrer introduces a more pluralistic and participatory perspective on spiritual and ontological dimensions. In his revision of transpersonal theory Ferrer questions three major presuppositions, or frameworks for interpretation, that have been dominant in transpersonal studies. These are the frameworks of Experientalism (the transpersonal understood as an individual inner experience); Inner empiricism (the study of transpersonal phenomena according to the standards of empiricist science); and perennialism (the legacy of the perennial philosophy in transpersonal studies). Although representing important frames of reference for the initial study of transpersonal phenomena, Ferrer believes that these assumptions have become limiting and problematic for the development of the field.