I maintain, then, that scientific psychology (and, it may be added, the psychology of the same kind that we all unconsciously practise when we try to "figure to ourselves" the stirrings of our own or others' souls) has, in its inability to discover or even to approach the essence of the soul, simply added one more to the symbols that collectively make up the Macrocosm of the culture-man. Like everything else that is no longer becoming but become, it has put a mechanism in place of an organism. We miss in its picture that which fills our feeling of life (and should surely be " soul " if anything is) the Destiny-quality, the necessary directedness of existence, the possibility that life in its course actualizes. I do not believe that the word "Destiny" figures in any psychological system whatsoever — and we know that nothing in the world could be more remote from actual life-experience and knowledge of men than a system without such elements. Associations, apperceptions, affections, motives, thought, feeling, will — all are dead mechanisms, the mere topography of which constitutes the insignificant total of our "soul-science." One looked for Life and one found an ornamental pattern of notions. And the soul remained what it was, something that could neither be thought nor represented, the secret, the ever-becoming, the pure experience.
Oswald Spengler, The Decline of the West, Vol 1: Form and Actuality
psychology, soul