According to Osho, the soul leaves nigod—its primal peace—purely out of intrinsic freedom. Freedom allows descent into desire; no force resists and even existence cooperates, giving bodies shaped by our cravings. Through the ensuing sorrow and repetition, a deep memory of bliss awakens, ripening into the urge to return. We finally come back to the same home, transformed by experience, valuing what was always ours.
Because we are totally free, we wander to taste desires, suffer, remember our true home, and then choose to return wiser.