This Book deals elaborately with the esoteric concept of the Tattvas and Gunas of this Creation as enunciated in the Upanishads. The word ‘Tattva’ means the fundamental elements of creation that serve as the building block of the entire universe which is infinitely vast and multifarious in dimensions, and the word ‘Guna’ refers to the basic qualities that are inherent in all aspects of the same creation and determine its character and nature. The Upanishads, which are singularly excellent repositories of metaphysical knowledge, have dealt with these twin concepts in fine detail. In our Book we will be reading about the different types of Tattvas and Gunas, about their many variations and connotations, how they determine the nature and character of this vast and multifarious Creation by the virtue of their being its basic building blocks, and many other fascinating things pertaining to them as enunciated in the different...