a kōan is a word from zen buddhism which literally means ‘knot.’ by studying the kōan and meditating upon it, a zen buddhist may attain enlightenment. it is much more complex than this description, of course, as all things are.
and who is to say which is better?
if you would like to speak with the sage, you should subscribe to the mailing list. then, when you receive your daily kōan, simply reply to the email and he will answer.