Zen, in the first place, is not a teaching but a device to awaken you. It is not information, it is not knowledge. It is a method to shake you up, to wake you up. Teaching means you are fast asleep and somebody goes on talking about what awakening is — and you go on snoring and he goes on talking. YOU are asleep, HE is asleep; otherwise he will not talk to you. At least when he sees that you are snoring he will not talk to you.