This book is a scientific analysis of religion, spiritualism, life, death. afterlife and faith based on multidiciplinary approach involving evolutionary biology, microbiology. physiology, neurology, sociology. history, physics, geology and fringe science. It deals with evolution of universe, life, modern man and his socio-political transformation accompanied by intellectual development. Somewhere along the course, came the concept of gods as a response to fear, and the important deities worshipped by people of 10 ancient civilization along with their roles and interrelationships have been described accompanied by analytical commentaries on the rationale and its relationship with God; analysis of 13 living religions with reference to historical background, philosophy moral precepts, rituals, sects, etc. and commonalities amongst them. This is followed by an analysis of with quantum mechanics and fringe science. The book goes further to look into the various scientific and philosophical theories of evolution and also the scientific theories of prayers and Mantras as well as the rationale behind the deification of fire, cow etc. Then follows a discussion of the life, death, afterlife and Karma with the help of theories of relativity, chaos, tachyons and helography. Finally the power of fear and faith and the indispensability of conscious faith in something or other have been emphasized.