Answer:

koan

AnswerCrossword Clue
KOANZen paradox
KOANRiddle for a student of Zen
KOANZen riddle
KOANZen master's riddle
KOANFor example, "What is the sound of one hand clapping?"
KOANMeditation question
KOANMeditation focus, at times
KOANZen question
KOANZen discipline
KOANZen master's question
KOAN"What is the sound of one hand clapping?," say
KOANParadox to be meditated on
KOANAid to Zen meditation
KOANParadoxical riddle
KOAN"What is the sound of one hand clapping?" e.g.
KOANZen puzzle
KOANParadoxical question, in Zen
KOANRiddle from a master
KOANRiddle in Zen Buddhism
KOANZen master's query