vocabulary.com
“In Zen Buddhism, a koan is a paradoxical anecdote or a riddle that has no solution. The term is used to show the inadequacy of logical reasoning. The teacher offers the student a perplexing phrase to be used as a meditation tool. One example is ‘What is the sound of one hand clapping?’ To consider one's worth and purpose, to sit and ponder the limits of the illusion of the power of knowledge, is to release our minds to the possibilities of the unknown. Each day, meditation offers a new frontier of letting go.”
