What strikes us first in this respect is the plant's dependence on the succession of the seasons. These in turn are an outcome of the changing mutual positions of earth and sun. That which forms part of the individual organism in higher living beings is located in the cosmic surroundings of the plant. In fact, it is our planetary system which provides the forces that stir the etheric and physical forces of the earth to their various interactions, thus bringing about all the manifold secondary polarities.