We have long accepted the doctrine of the evolution of the forms in which dwells the Divine Life; here is the complementary and far greater idea of the evolution of that Life itself, showing that the very reason for that wondrous development of higher and higher forms is that the ever-swelling Life needs them in order to express itself. Forms are born and die, forms grow, decay and break; but the Spirit grows on eternally, ensouling those forms, and developing by means of experience gained in and through them, and as each form has served its turn and is outgrown, it is cast aside that another and better form may take its place.