ABSTRACT
The vertex of the psycho-analyst, and changes of vertex corresponding to moment-to-moment changes in a session, effect the transformations made manifest in associations and interpretations. First, there must be a difference of vertex to make correlation possible. Second, the vertex must not be too distant or too near, otherwise correlation becomes impossible. Under this vertex the views of patient and analyst are separated; the 'gap' separating them is bridged by something that the author calls linear or planar, or a line or film. Very different is the gap that is bridged by a relationship between container and contained. The simple visual model: a man wishing to communicate his annoyance is so overwhelmed by emotion that he stammers and becomes incoherent. The invariants under the theory the author formulates are the forms of speech that the man uses to convey his meaning.
