This chapter constitutes an intervention into the so-called affective turn. It centres upon a critique of the affect/emotion distinction upon which this turn "turns". The chapter begins with a discussion of Raymond Williams"s concept of "structure of feeling", which is used to explicate one key inspiration for a turn to affect: a distinction between "event" and "structure". But the affect/emotion distinction also plays out in terms of a difference between an ontological account of feeling (applicable, via Spinoza and Whitehead, to the entirety of nature) and an anthropological account. Through these arguments, the turn to affect is re-construed as the cultural emergence—still in process—of a coherent species of transdisciplinary process thought.