9. The Sleeping-and-Waking Rhythm in the Context of Cosmic Evolution
We really must use spiritual science to bring before our mind's eye the profound spiritual background to what shows itself in the world. At the same time we must come to see how the necessity which now exists for mankind gradually to accept spiritual science is intimately bound up with profound impulses in the history of the spirit. The necessity arises not from arbitrary choice of some individual but from the great cosmic spiritual evolution which has to take its course throughout the period of earth evolution. Man's mission and task is to enter more and more into genuinely spiritual experience as he moves towards the future, so that mankind does not dry up the way the whole of earthly civilization is drying up, and the spirit will truly be able to continue to live on this earth.