Quickening

"Then suddenly he felt a quickening in him. His heart turned and he leaned his back against the counter for support. For in a swift radiance of illumination he saw a glimpse of human struggle and of valor. Of the endless fluid passage of humanity through endless time. And of those who labor and of those who—one word—love. His soul expanded. But for a moment only. For in him he felt a warning, a shaft of terror... he was suspended between radiance and darkness. Between bitter irony and faith."

Carson McCullers, of course.