The Doctrine and Practice of Yoga by Swami A. P. Mukerji

Student! Your life is your own. You have only yourself to thank for what you are, have been and will be. Take your present into your own hand. Consciously shape out of it your future. Direct your forces along lines of study and endeavour that have the strongest attraction for you. Such attraction is the indication of need. It is the hand pointing out your Life-purpose. What your heart desires earnestly and clamours for incessantly is attracted to you out of the invisible supply, i.e., the means, the environments, the right sort of persons, books and thought-forces are drawn to you and then you are expected to work out your desire. This is in perfect accord with the great Law of Attraction. Some call it God: since it answers all sincere prayers. Prayer, remember, is the sincere desire of the heart. I take it that you hunger for Truth and Spiritual Growth—else you and I would not be here. The instructions given you hereunder are meant to give you a strong body and a strong will. They will also tend to your Soul-Unfoldment. Talk not of them. Keep your mouth closed. Be serious, earnest and thoughtful. Then work at them confidently and with perseverance. Do not be daunted by apparent failures. Failure is the stepping-stone to Success. He fails who gives up a thing in final despair. Go on, I say. You will improve from the very first day, and in a short time you will be another man. All the leaders of humanity, past or present, have studied and investigated with tireless zeal along the special lines and, in Spiritual culture, you must do the same. But you must have health, a strong will and a steady brain, and I will enable you to have these positively. Keep these instructions strictly privately. Master them by constant meditation upon same. Concentration signifies the state of being at a centre (con and centrum). Applied to thought, it is the act of bringing the mind to a single point. Each human being must practise concentration subjectively and objectively. In other words, each human being aims with more or less precision at concentration on a point within and a point without his own world. Concentration without is illustrated when you devote all your attention upon Nature, such as learning a trade, a profession, a science, an art or some form of business. This is Evolution, outgoing or positive mental energy. I shall call this Objective Concentration. Concentration within implies the withdrawing of attention from the external world and the placing of mind on God, Spirit, Heaven, Religion, Peace, Nirvana, Eternity, etc. This is Involution, i.e., incoming or negative energy. When Objective Concentration alone is practised, you develop into a hard-headed, practical man of the world or a successful man of business. You are keen and shrewd. The world is a very matter-of-fact thing to you. You cannot think of anything else beyond money-making and pleasures and worldly affairs. You are a worldling of the world, very clever, rich, and a master along your own lines. But spiritually you are an imbecile, worse than a baby. This is the Objective Mind—the deepest immersed in matter, literally made of the dust. It is the brain of worldly wisdom, common sense, prudence, methodical arrangement, order, discipline, classification, the skill and knowledge of the expert in any branch or department of art or science. This side of the mind is well developed in Scientists, Mathematicians and Businessmen, etc. Where it is not guided by the Subjective Mind, it can only see diversity and difference and is the slave of Maya—the slayer of the Real.