5 definitions
The Augury (n.) can stay an augur only while he believes the gods speak through entrails; once he doubts, he must choose between opportunism and the pursuit of truth, which was Loÿ's image for the doctor's dilemma.
The Midwife (n.) is the analyst's role in Loÿ's summary: he can only bring to light a child already alive, avoiding mistakes, while the patient's own nature decides what benefits him.
The Prism (n.) is Loÿ's allegory: it splits the sun so that people in the blue zone swear the sun is blue and kill those in the red zone, until a lens recombines the rays; all truth reached is relative and partial.
Relativity of truth - truth of the relative (n.) is all research ever attains, since absolute truth needs omniscience over infinite combinations; it suffices if it explains past facts, lights the present and predicts enough to let us adapt.
Self-knowledge (n.) is the deeper aim of analysis as Jung put it to Loÿ: not just removing symptoms but the analysand knowing himself wholly and rebuilding his life, with the analyst only supplying the tools.