Circumstances can have a motive force by which they bring about events without aid of human imagination or apprehension. On such occasions you yourself keep in touch with what is going on by attentively following it from moment to moment, like a blind person who is being led, and who places one foot in front of the other cautiously but unwittingly. Things are happening to you, and you feel them happening, but except for this one fact, you have no connection with them, and no key to the cause or meaning of them. [...] - a passage outside the range of imagination, but within the range of experience.