According to Osho, yes. Schopenhauer, drowning in Vishada-yoga, encountered the Gita like a desert spring; he read it in one breath, danced, and declared he had found a ray of trust. Krishna’s ray touched him, initiating a decisive inward turn. Though not instantly enlightened, hope entered; from that glimmer, the journey toward Krishna-consciousness had unmistakably begun.
Yes—he was very sad; the Gita gave him hope like a sunray, starting his walk toward Krishna-consciousness.