what we call our creations are new combinations of already existing material, whether mental or corporeal. This is amply demonstrated in the physical sciences. No one speaks of creating energy, but only of transforming one form of energy into another; and if we realize this as a universal principle, we shall see that on the mental plane as well as on the physical we never create energy but only provide the conditions by which the energy already existing in one mode can exhibit itself in another: therefore what, relatively to man, we call his creative power, is that receptive attitude of expectancy which, so to say, makes a mould into which the plastic and as yet undifferentiated substance can flow and take the desired form. The will has much the same place in our mental machinery that the tool-holder has in a power-lathe: it is not the power, but it keeps the mental faculties in that position relatively to the power which enables it to do the desired work. If, using the word in its widest sense, we may say that the imagination is the creative function, we may call the will the centralizing principle. Its function is to keep the imagination centred in the right direction.

We are aiming at consciously controlling our mental powers instead of letting them hurry us hither and thither in a purposeless manner, and we must therefore understand the relation of these powers to each other for the production of external results. First