A zen teacher sitting by a stream is one day approached by a student who said "teacher, I want to know truth". The teacher then said "good, come closer". The student moves closer and sits down next to the teacher, and says again "teacher, I want to know truth", the teachers replies "listen to the stream, what do you hear?" - the student replies, "teacher, I hear the stream, I want to know truth".
The teacher then says "place your ears next to the water", the student does so and immediately the teacher plunges the students head in the water. After holding him there for a few moments the teacher says "when you were underwater, what did you want?" The student said "I wanted air", and the teacher replies "return to me when you want to know truth as much as you wanted air".
I am fairly sure I heard this from modern egyptologist John Anthony West - I probably didn't get it completely right, but I feel the many points found within remain. Although I have my own thoughts on the saying, as to its meaning, I am very interested to hear others perspective on it.
So I pose the question, what was the teacher saying here in your opinion? The answer may seem obvious and apparent, however...