According to Osho, Buddha insists life is misery because life as we ordinarily live it is on fire with dukkha; the statement isn’t condemnation or pessimism but a factual diagnosis meant to awaken urgency. Seeing suffering clearly cures our blindness and propels us to seek the path beyond it—into awareness and ultimate bliss, which Buddha himself embodies.
He says life hurts so we’ll notice the fire, open our own eyes, and walk the path to real happiness.