This book is about God and Science, exploring the concept of God with particular reference to Sanatana Dharma, also known as Hinduism. Sanatana Dharma is eternal religion, and irrespective of a particular individual's faith, universally it can be followed. Thus, Hinduism stands above all other religions and is a way of life that can be adopted, as it is universal in adaptability. A classic example is that of Dr. Annie Besant, the founder and president of the Theosophical Society of India, who remained a Christian despite adapting to the Hindu way of life. Want to know why we have to go to a temple to pray, why idol worship should be followed? The answers are here. Following Sanatana Dharma alone can give an individual God-realisation or liberation. The scientific basis of Sanatana Dharma is explored in detail in relevant chapters. In short, this book will be a lucid introduction to Sanatana Dharma. Every believer of God will find it worth reading to have a conceptual understanding of God, prayer and the science behind them.