Stage plays also captivated me, with their sights full of the images of my own miseries: fuel for my own fire. Now, why does a man like to be made sad by viewing doleful and tragic scenes, which he himself could not by any means endure? Yet, as a spectator, he wishes to experience from them a sense of grief, and in this very sense of grief his pleasure consists. What is this but wretched madness? For a man is more affected by these actions the more he is spuriously involved in these affections. Now, if he should suffer them in his own person, it is the custom to call this “misery.” But when he suffers with another, then it is called “compassion.” But what kind of compassion is it that arises from viewing fictitious and unreal sufferings? The spectator is not expected to aid the sufferer but merely to grieve for him. And the more he grieves the more he applauds the actor of these fictions. If the misfortunes of the characters--whether historical or entirely imaginary--are represented so as not to touch the feelings of the spectator, he goes away disgusted and complaining. But if his feelings are deeply touched, he sits it out attentively, and sheds tears of joy.
(Confessions, Trs. Albert C. Outler, Book III. Chapter 2:1)