The second part of the second book is concerned with practical spiritual training, that is, with the earlier practical training of the spiritual man. The most striking thing in it is the emphasis laid on the Commandments, which are precisely those of the latter part of the Decalogue, together with obedience to the Master. Our day and generation is far too prone to fancy that there can be mystical life and growth on some other foundation, on the foundation, for example, of intellectual curiosity or psychical selfishness. In reality, on this latter foundation the life of the spiritual man can never be built; nor, indeed, anything but a psychic counterfeit, a dangerous delusion. Therefore Patanjali, like every great spiritual teacher, meets the question: What must I do to be saved? with the age-old answer: Keep the Commandments. Only after the disciple can say, These have I kept, can there be the further and finer teaching of the spiritual Rules. It is, therefore, vital for us to realize that the Yoga system, like every true system of spiritual teaching, rests on this broad and firm foundation of honesty, truth, cleanness, obedience. Without these, there is no salvation; and he who practices these, even though ignorant of spiritual things, is laying up treasure against the time to come. BOOK II 1. The practices which make for union with the Soul are: fervent aspiration, spiritual reading, and complete obedience to the Master. The word which I have rendered “fervent aspiration” means primarily “fire”; and, in the Eastern teaching, it means the fire which gives life and light, and at the same time the fire which purifies. We have, therefore, as our first practice, as the first of the means of spiritual growth, that fiery quality of the will which enkindles and illumines, and, at the same time, the steady practice of purification, the burning away of all known impurities. Spiritual reading is so universally accepted and understood, that it needs no comment. The very study of Patanjali’s Sutras is an exercise in spiritual reading, and a very effective one. And so with all other books of the Soul. Obedience to the Master means, that we shall make the will of the Master our will, and shall confirm in all wave to the will of the Divine, setting aside the wills of self, which are but psychic distortions of the one Divine Will. The constant effort to obey in all the ways we know and understand, will reveal new ways and new tasks, the evidence of new growth of the Soul. Nothing will do more for the spiritual man in us than this, for there is no such regenerating power as the awakening spiritual will. 2. Their aim is, to bring soul-vision, and to wear away hindrances.