Alan Watts: Z E N
From the lecture titled, 'Out of Your Mind: The Nature of Consciousness'.
My take on zen is in the following book. In my approach I assume that Siddhartha was one teacher amougst many of his time basically teaching the same forest tradition, as we know to be true. Everyone taught meditation around their system and we know Siddhartha taught one version of Buddhism for the lay person and another for his inner circle. We can assume it involved a more involved meditation practice as is common in Buddhist monasteries even today. The only real difference between Siddhartha and the other forest sages of his day, was that he taught a philosophy of "no self".