The human kingdom is not of this world

Rudolf Steiner:  "In ancient times, when men were only the race of Adam, they had no need to draw forth an active experience from the depths of their own being before they could behold the divine and spiritual. The divine and spiritual came to them in elemental form, with everything that lived in the air and on earth. But mankind had gradually to lose this living communion with the divine and spiritual in all the phenomena of the world of sense. A time had to come when man must perforce lift himself up to the divine and spiritual by an active strengthening of his own inner life. He had to learn to understand the words: “My kingdom is not of this world.” He was not to be allowed to go on receiving a divine and spiritual reality that came forth to meet him from all sense-phenomena. He had to find the way to a divine and spiritual kingdom that could be reached only by inward struggle and inward development."