"What then, scientifically speaking, is a 'feeling-toned complex'? It is the image of a certain psychic situation which is strongly accentuated emotionally and is, moreover, incompatible with the habitual attitude of consciousness. This image has a powerful inner coherence, it has its own wholeness and, in addition, a relatively high degree of autonomy, so that it is subject to the control of the conscious mind to only a limited extent, and therefore behaves like an animated foreign body in the sphere of consciousness."
Jung, C.G. (1969). The Structure and Dynamics of the Psyche, p.201.