This book is not only an intensive study of the gospel of the Sikh Gurus, but also compares and contrasts the doctrines and principles of Sikhism with those of the other higher religions of the world. The object of the book is two-fold : first, to explain the identity, unity and integrity of the Sikh gospel and secondly, to undertake on the basis of the essentials of each system, a classification of the principal religions of the world and in that context, to bring out the place of Sikhism among them. Part One Definition and Classification / 15 Indian Dualistic Religions / 34 Vedic System / 43 Upanisadic System / 50 Vedanta / 56 Vaisnavism / 61 Saivism / 82 Buddhism / 95 Christianity and Christian Mystics / 124 Islam and Sufism / 137 The Radical Bhakti School / 157 Modern Hindu Mysticism / 175 Part Two The Idea of God / 185 The Metaphysical View / 195 The World / 201 The Concept of Haumen / 205 Solution / 211 Goal and Gurmukh / 220 Guru’s Prophetic Communion with God / 230 The Discipline / 231 Ethics / 237 The Khands / 244 Guru / 250 Mystic Immortality / 254 The Lives of Gurus / 256 A Sikh Mystic / 293 Conclusion / 300