Introduction 1. Mild Psychosis, the Body and Ordinary Psychosis 2. Modern Psychiatry, Elementary Phenomena and the Lacanian Theory of Psychosis 3. Formations of the Unconscious, Actual Neurosis and Body Phenomena in Psychosis 4. Case Studies: the Onset of Psychosis, Body Phenomena and Stabilisation 5. The Onset of Psychosis, Body Phenomena and the Imaginary in Ordinary Psychosis 6. The Symptomatisation of the Body and Stabilisation in Ordinary Psychosis Conclusion