The author of this biographical book, Walter Biemel, a former student and "life" student of Heidegger, does not set a goal to discover and illuminate the "other side" of the Luminary or to find "spots" in this sun of 20th century philosophy; the book does not contain descriptions of the Master's life as an ordinary person - family, habits, love, friends, etc.; no dialectics. In the text, Heidegger appears as an exclusively integral and one-plan figure, for whom thinking meant living - but by no means according to Descartes's formula "I think, therefore I exist." Using the language of Heidegger's own philosophy, Biemel attempts to present this thinker's inner path as the truest path in life.