It is the work of the biologist to explain in detail the gradual development of the creation. But the outline that the mystics of all ages have made is that first was the creation of the mineral kingdom, then that of the vegetable, then that of the animal kingdom, and then that of man; and that through all this process of development there has been a certain purpose that has led the creation on to the fulfillment of a certain object. But when one studies the whole process - the mineral, the vegetable, the animal kingdom and then man - the seer finds something which was missing and which then appears as the development goes on further. And what is it that was missing? It is expression and perception, and it is this which the mystics have pointed out in their symbolical expression: "the word that was lost."