Tattva Jnana means the knowledge of the principles. This book outlines and enumerates these 36 principles as well as the three qualities of nature, the four objectives of life, the five elements, the six subjects of study, the seven levels of consciousness, the 8 limbs of yoga, the nine steps of devotion and much more! There is a compilation of the classical schools of philosophy as well as definitions and applications. In one small, simple book, all this information is in an abbreviated outline format, keeping the handbook’s knowledge extremely clear, accessible and efficient. Students of spirituality will find their time with this book well spent.