According to Osho, the world seems to fall back because spiritual realization is never inherited, accumulated, or transfused through society. Each person and each generation must begin anew, standing on their own feet. Even after mass awakenings, children won’t be born enlightened. Therefore no collective evolutionary curve appears; growth remains an utterly personal effort, repeated afresh in every life.
You can’t inherit enlightenment like money—each person has to learn and wake up by themselves, again and again.