Lynne Hume is Associate Professor, School of History, Philosophy, Religion and Classics, The University of Queensland, Brisbane, Australia.

* Chapter 1: Entrances and Exits* Chapter 2: Mandalas and Visual Symbols* Chapter 3: Portals of Sound* Chapter 4: Dance and Movement* Chapter 5: Tactile Portals* Chapter 6: Olfactory and Gustatory Portals* Chapter 7: Entheogens as Portals* Chapter 8: An Anatomy of Reality