I thought of the conscious as of a room above, with the unconscious as a cellar underneath and then the earth wellspring, that is, the body, sending up the instincts.
Jung presents the cellar as the foundational spatial metaphor for his early topography of the psyche, positioning the unconscious structurally below conscious life and above the instinctual body.
, Analytical Psychology: Notes of the Seminar Given in 1925, 1989thesis