” Though Freud himself was always striving to express his findings in terms of objective realities, the actual entities he constructed were far more like the spirits, virtues, and faculties of a medieval morality play than the material entities of the physicist and chemist.

The unconscious, with its trinity of ego, super ego, and id, the complexes, the censor, the libido, and the death-wish, were all invented by Freud to explain the strange imaginings, dreams, and compulsive behaviour of his patients… [These constructs] tended to take on, especially with his followers, an absolute character, and created a fixed and almost mythological inferno of evil influences…..”

Bernal, Science in History (1957)