Schafer re-emphasizes the importance of viewing affects from the structural frame of reference and stresses their multiple determinations. He establishes eight categories which he believes to be of value in the analytic study of affects: affect existence, affect formation, affect strength, affect stimuli, affect complexity and paradox, affect location, affect communication, and affect history. The author stresses that analysis of affects must also deal with ideas, attitudes, fantasies, impulses, and defenses. Though he offers no new formulations as to the current theory of affects, he emphasizes the importance of affect analysis and draws attention to theoretical ambiguities that surround general constructs of affects.