Today, Yoga has acquired global recognition and an exalted status as an ancient health-building system. It is true that Yoga is powerful and contains the solutions for all the global problems. Yoga as a complete medical science and philosophy of life and accepts its scientific reasoning and basis. Yoga is not just a physical exercise but a holistic medical science; it is a philosophy of life, a spiritual knowledge. It is a profound philosophical thought process, but it is also about having a simple, easy and balanced life-style. It is the path to gain eternal wisdom, ultimate truth and to unite the inner soul with the supreme soul through self-realization. It is a tradition in which sages have attained immeasurable bliss, indescribable happiness and inexplicable peace by entering the supreme consciousness which is present beyond mind. It is the science that inhibits the agitations of the mind and takes it to its highest level. Yoga is the spiritual journey from ignorance to knowledge, mortality to immortality, obvious to hidden and peace to ultimate tranquillity. It is the inner journey from thoughtfulness to emptiness, subjective to objective concentration, determinate to indeterminate samadhi and extrovertedness to introvertedness and being firm in judgement . This book is an humble attempt in this direction. We are determined to obtain more scientific evidence and build a science perspective not only for Yoga and Ayurveda but for the entire Vedic knowledge and wisdom. We shall lead the world in finding solutions for complex problems besetting humanity through the fusion of science and spiritualism. This book is the outcome of meticulous work put in by us in order to present various scientific standards used to test and validate this ancient system of Yoga, demographic study and personal experiences of several hundred people along with sufficient supporting proofs and documents. This is our first attempt to present Yoga backed by currently available scientific evidence, the goal is far more ambitious and the task of scientific documentation and research is an ongoing process. We will continue with the research and shall present new facts as they become available.