Ornston feels that the concepts of projective identification and impingement used by Ogden in his case report are ambiguous and that they obscure the central event of the therapy. Ogden replaced an initial incorrect interpretation after he became aware of his countertransference. The use of metaphors as explanation is a common methodological problem in psychoanalytic thinking. Ogden replies, addressing himself to Ornston's criticism of the concepts of projective identification and impingement.