It is true that they both exist within the soul, just as the soul exists within time and space; but since the soul is unfathomable these two conditions of the soul are also unfathomable. The struggle upon which the universe depends is a struggle which goes on within the circle of personality; but since personality is unthinkable without this struggle, it may truly be said that the existence of personality "depends" upon the existence of this struggle. When we speak of pain and pleasure as if they were independent entities we are forgetting that it is merely as "states of the soul" that pain and pleasure exist. When we speak of love and malice as independent entities we are forgetting that it is merely as "states of the soul" that love and malice exist. Love and malice, the life-force and the death-force, these are merely abstractions when separated from the soul which is their arena. It is certainly not in harmony with the revelation of the complex vision to seek to imagine some vague "beginning of things"; when some inscrutable chemical or spiritual "energy," called "life," rushed into objective existence and proceeded to create living personalities through which it might be able to function. The revelation of the complex vision is a revelation of a world made up of unfathomable personalities. Of this world, of these unfathomable personalities, we are unable to postulate any "beginning." They have always existed. They seem likely to remain always in existence. Our knowledge stops at that point; because our knowledge is the knowledge of personality. The revelation of the complex vision is constantly warning us against any tendency to evade the whole question of the original mystery by the use of meaningless abstractions. The word "energy" is such an abstraction. So also is the word "movement." So also are those logical formulae of the pure reason, such as the "a priori unity of apperception" and the "absolute spirit." Apart from personality, apart from the complex vision of the individual soul, there is no such thing as "energy" or "movement" or "transcendental unity" or "absolute spirit." In the same way we are compelled to recognize that apart from personality the unfathomable duality has no meaning. But in so far as it represents the eternal struggle between life and death which goes on all the while in every living soul, the unfathomable duality is the permanent condition of our deepest knowledge.