Most of the biographers of the Tathagata Gautama Buddha, while giving the Buddha a superhuman form, have degraded the great sage Siddhartha and the path of liberation he discovered with the help of supernatural imagination. They have not been able to describe the wisdom of Lord Buddha, but on the contrary, they have made the position of Buddha unclear and questionable to the scientifically minded reader. With the help of modern science, some historical researchers have now started writing books based on the true biography of Gautama Buddha with the true perspective, and have presented the Buddha and the Buddha's discoveries to the public. The editor of this book, Mahasaya, has also advanced the initial stage of Buddhist practice by making that virtuous work a little easier and more accessible. In writing the book, he has followed the original book recognized by the Bodhimandal of Buddhist science and has maintained the authenticity of the present book.