The object of this book is twofold: (i) To refute the many wrong opinions which are entertained by Western critics concerning the fundamental teachings of Mahayana Buddhism; (2) To awake interest among scholars of comparative religion in the development of the religious sentiment and faith as exemplified by the growth of one of the most powerful spiritual forces in the world. The book is therefore at once popular and scholarly. It is popular in the sense that it tries to expose the fallacy of the general attitude assumed by other religionists towards Mahayanism. It aims to be scholarly, on the other hand, when it endeavors to expound some of the most salient features of the doctrine, historically and systematically.