According to Osho, there is no doctrine to teach: truth is not reached by philosophy, thought, or theories, but by direct, existential awareness. His 'teaching' is meditation - being here-now, open, humble, and empty of accumulated knowledge. In this receptive void, revelation happens; words may later indicate it, but knowledge serves only communication, never realization.
Quiet your mind, be fully present, and let truth show itself; explanations can come after.