Knowledge of the Higher Worlds and Its Attainment or How to Know the Higher Worlds is Steiner’s most essential guide to the modern path of initiation he advocated throughout his life. It has been translated into many languages and has inspired hundreds of thousands around the world. With great clarity and warmth, Rudolf Steiner details the exercises and moral qualities to be cultivated on the path to a conscious experience of supersensible realities. By patiently and persistently following his guidelines, new “organs” of soul and spirit begin to form that reveal the contours of the higher worlds thus far concealed from us.