Help Others Do Teshuvah

The Mishnah in Avot says, someone that causes people to do teshuvah, Hashem helps them by not bringing them to sin. He gives them special siyata d'Shmaya, special assistance of protection not to make big sins. But a person that causes other people to sin, Hashem refrains them from doing teshuvah. Meaning, he puts different obstacles in front of them, making it more difficult for them to do teshuvah.