Zukav questions the Western model of the soul, alleging that the human species is in the midst of a great transformation, evolving from a species that pursues power based upon the perceptions of the five senses--"external power"-- to one that pursues power based upon perceptions of the soul--"authentic power." He believes that humans are immortal souls first, physical beings second, and that once we become conscious of this transformation--once we align our personalities with our soul--we will stimulate our spiritual growth and become better people in the process. This insightful, lucid synthesis of modern psychology and new-age principles has been described as the "physics of the soul." Who better to explain such heady concepts than Gary Zukav?