According to Kant, passions are a distinct type of inclination. Unlike normal inclinations, however, they are inherently destructive—much like addictions. Recent scholarship on Kant's view has left two important questions unanswered. First, what is the key trouble-making difference between passions and normal inclinations? Second, what mental processes give rise to passions in the first place? My article answers both questions. I argue that passions involve a form of tunnel vision or hyperfocus that corrupts practical reason by hijacking attention. This problem (...) emerges when the imagination (or “fantasy”) distorts the processes that give rise to normal inclinations. (shrink)