Many people do meditation. Tantras try to prove the Mantra Yantra. But many people do not have any experience at all. So in this book we have tried to tell some such principles. Due to which one can get mantra siddhi in sadhna. Many seekers have this question that why we do not get mantra siddhi? I have meditated for so many years, yet I have not felt anything. Similarly, many people leave the path of cultivation. If you also feel that your spiritual practice needs a direction Then this book is a guide for you. After reading this book perhaps you will move ahead in the path of cultivation and will be able to achieve your ultimate goal. Many such secret but simple things have been told in this book, which if you do exactly as told, then I can say with certainty, that you will definitely get accomplishment.