This book deals with the lofty thoughts of the Upanishads. It is different from anything published so far on the Upanishads. There have been many commentaries written during the past many centuries. The present book steers clear of them all. It deals with the materials which has relevance to modern thought in science, epistemology, history of ideas, social history and philosophy. The topics discussed are of secular interest without any religious bias. Why did an ...