According to Osho, the Buddha does laugh—but never before his disciples; his laughter is solitary. Osho uses this to show that true playfulness (leela) includes both light and dark: to laugh with Buddha is to mature enough to embrace polarities—joy and sorrow, life and death—remaining whole, able to dance even in heaviness and be happily sad without repression.
Yes, Buddha laughs, but quietly alone—and the real lesson is to be playful even when life feels hard, not just when it’s fun.