According to Osho, debating a master is largely meaningless: a master's arguments arise from the clarity of no-mind, not from ordinary intelligence. Only one who has no-mind could truly challenge him—and such a person would understand instantly, without any argument. The real work is to turn inward, become a witness, and meet the master in silence, not in words.
Arguing with a wise teacher doesn’t help; when you get very quiet inside, you understand without arguing.