It is this whole gradual unfoldment of the spirit which is buried in all these different aspects of nature and at each step -- from rock to plant, from plant to animal, and from animal to man -- the spirit is able to express itself more freely, is able to move more freely. In this way the spirit finds itself in the end. What does it show? It shows that there is one purpose working through the whole creation. The rocks are working out the same destiny as man, the plants are growing towards the same goal as man. What is that goal? Unfoldment. The spirit is buried in the creation and wants to make its way out. At each step of evolution there is a new unfoldment, a greater opening.