According to Osho, 'when the disciple is ready' means the ego has softened into humility, a sincere thirst to learn has arisen, and one is willing to bow, inquire, and trust—then the master appears. Openness magnetizes guidance, as with Arjuna; closed pride, like Nietzsche's, blocks it. Without discipleship, even meeting a master is fruitless; readiness is the primary condition for liberating transmission.
Be humble and truly want to learn; then the right teacher can help you—if you're stubborn, no teacher can reach you.