9 lectures, Dornach, February 1923 (CW 221) There is a great difference between the meaning of "know yourself" in the ancient mystery centers and its meaning today. In ancient times, one tried to achieve after death what one can now attain during earthly life. In order to reach higher stages of development after we die, we must become fully human during life on Earth. Such matters have changed over millennia of human and earthly evolution. At the center of the evolution human consciousness is the Christ event. Today, we must experience the Christ within ourselves as light, life, and love. By adopting the appropriate path of knowledge, we can become citizens of the universe rather than "hermits" on the Earth. These lectures are crucial reading for a deeper understanding of the anthroposophic view of our place as human beings in the cosmos. C O N T E N T S 1. Self-knowledge and Experiencing the Christ in Oneself2. The Human Being in Waking and Sleeping, part 13. The Human Being in Waking and Sleeping, part 24. Earthly Learning and Heavenly Wisdom, part 15. Earthly Learning and Heavenly Wisdom, part 26. The Human Being within Us(Blackboard Illustrations)7. Moral Impulses and their Physical Manifestations, part 18. Moral Impulses and their Physical Manifestations, part 29. Moral Impulses and their Physical Manifestations, part 3 This volume is a translation of Erdenwissen und Himmelserkenntnis (GA 221).