An Introduction to Zen Buddhism - DT Suzuki Zen Buddhism - Christmas Humphreys The Way of Zen - Alan Watts
As guides to the nature and meaning and cosmic heart of Zen Buddhism, these three combined are a dream team.
It is quite something to use the intellect to go beyond the intellect, is it not? To explain what can only be experienced and say with words what cannot be said. But for the sage and the poet, it is their day job.
I have to say, I once met a guy with an extraordinarily flexible hand, who would answer the question “What is the sound of one hand clapping?” by making a very creditable flapping noise.