Letters 102.1

Just as a man is annoying when he rouses a dreamer of pleasant dreams (for he is spoiling a pleasure which may be unreal but nevertheless has the appearance of reality), even so your letter has done me an injury. For it brought me back abruptly, absorbed as I was in agreeable meditation and ready to proceed still further if it had been permitted me.

Seneca, Letters to Lucilius 102.1, translated by Richard Mott Gummere