Answer: koans

AnswerCrossword Clue
KOANSZen riddles
KOANSZen paradoxes
KOANSSources of Zen enlightenment
KOANSQuestions in "The Gateless Gate"
koansKOAN, a paradox meditated on by Buddhist monks
koansnonsensical or paradoxical question to a student for which an answer is demanded, the stress of meditation on the question often being illuminating