Even the best ones, who dedicate their time to involvement in Torah, do so only for their own betterment, without the proper intention to grant satisfaction to their Creator.
At that time, during that generation, there will be “a passing spirit that never returns” (Ps. 78:39). This refers to the spirit of the Messiah, who needs to redeem Israel from all of their troubles, leading to the complete redemption, as the verse states, “Knowledge of the Lord will fill the earth” (Is. 11:9). This spirit has left and abandoned the world; it does not provide light.