Zen Koans

"These koans, or parables, were translated into English from a book called the Shaseki-shu (Collection of Stone and Sand), written late in the thirteenth century by the Japanese Zen teacher Muju (the "non-dweller"), and from anecdotes of Zen monks taken from various books published in Japan around the turn of the 20th century."
101 Zen koans, yours for the clicking.