Can give the richest philosophical heritage of East and the West to us reliable decision of main problems of human existence? What would our life become, if we seriously aimed to understand how to live her correctly? If would we do everything after, that in our forces, to apply it in business? What would we be then capable on? How would the world look around?An author of this book is a candidate of philosophical sciences, creator largest in Russia blog and subcaste about philosophy, psychology and нейробиологии of "Letter to itself". These fundamental questions are understood the enthrallingly in her, and accessible, and on a vast evidential base.The publishing layout of book is stored in the format of PDF A4.