Analytic positions are defined as viewing perspectives. Therefore, an analytic position determines one's field of observation. Two families of affect theories in psychoanalysis are then identified: the Darwinean and the Aristotelian. Affect has been addressed as either an energic-like charge along a gradient or a form of communication. Each swims into focus when viewed with respect to the position of the observer as either inside the clinical interaction or outside the transference. How each is observed then determines different implications for interpretation, transference, reconstruction, and defense analysis. How the mind itself is modeled in theory is seen to follow from how observers position themselves. Choosing an observational field cannot be avoided. How an analyst in a clinically meaningful way might think about such disparate fields is taken up.