This mystery of the heart is little known and even less understood. Dr. Rudolf Steiner was very keen on this idea and believed that the evolution of the heart was a key factor in the overall development of humanity. The significance of this heart evolution is critical to expand human awareness and consciousness of the inside and outside world of the individual. As humans expand beyond the awareness of the inner world of the human body, a larger, more universal perspective must arise in a new form.
Only when one is able to understand the world through twelve perfectly valid, but different, World Views, is the individual able to become a universal citizen of the cosmos. Broadening and expanding human consciousness to encompass the entire world of the stars that ray in from the twelve cosmic directions opens the heart to the new shape it will become as the heart develops into a greater and greater sense organ of the entire universe.