A classic by the occultist C.W. Leadbeater. In this short book you will learn about... - The great power you always have at your disposal. - The surprising nature of thought and thought-forms. - How thought spreads and influences yourself and others. - The importance of learning to control yourself and not waste your energy. - The great responsibility to life and to others that this power truly represents. After reading this book you will never see your thoughts the same way again.