A few more thoughts on Chan Buddhism:
I think that the meaning of life, according to the Hitchhiker's Guide to the Galaxy, is very Chan. The mice (actually a race of super-intelligent pan-dimensional beings) designed the galaxy's most powerful computer, named Deep Thought, for the sole purpose of finding out "the Ultimate Answer to Life, the Universe, and Everything." They asked it to find the answer, and it had to work on it for seven and a half million years. Finally, the program finishes, and two representatives are sent in to recieve the answer:
"'All right,' said Deep Thought. 'The Answer to the Great Question...'
'Of Life, the Universe and Everything...' said Deep Thought.
'Is...' said Deep Thought and paused.
'Fourty-two, said Deep Thought, with infinite majesty and Calm"
It turns out that the problem was that they didn't really know what the question was. So the Earth was built as a giant biological computer to find out the answer. Unfortunately it was destroyed 5 minutes before the program was to finish. However, the protagonist, Arthur Dent survives, and in the deep recesses of his brain is the Question:
"What do you get when you multiply six by nine."
Of course all of that is intended to be funny rather than deep, but it has that same feel of ".... wha?"