ABSTRACT
This chapter discusses Wilfred R. Bion’s second thoughts or commentary in chronological order, after the caesura. In Bion's papers on psychosis, clinical material was rendered in a way that is usual in psychoanalytic articles. At best the Imaginary Twin article can be read as a description of a realization that occurred at that particular moment. The importance of contact with the non-sensuous dimension or the O of a session raises questions about conceptions of the psychoanalytic cure based on sensuous experience and on the pleasure principle. At the time of the Commentary, Bion would rather interpret the evolution which he sees at a non-sensuous level. The 'Commentary' is a small text but of particular importance as it helps us to see how Bion reinterpreted his former concepts and clinical experience in the light of his new insights about the need to be open to a dimension that he called O.
