One of Luria’s followers, Rabbi Hayyim Vital, in his book Sha’ar HaGilgulim (“The Gate of Reincarnations”), explicates in great detail how these dynamics can play out over the many generations. According to Vital, souls are reborn specifically to perfect certain aspects of themselves or to complete unfinished tasks.
The Jerusalem Post (July 4, 2019) has a good article on gilgul (reincarnation)
Jerusalem Post, July 4, 2019. Article on Gilgul - reincarnation. One of Maimonides's "13 Principles of Faith" of Judaism. https://www.jpost.com/Israel-News/Culture/Return-again-Reincarnation-in-the-Jewish-tradition-594485
Isaac Luria (1534 - 1572) wrote "The Gate of Reincarnation' = Ha sha'ar HaGilgulim.
What Judaism Says About Reincarnation | My Jewish Learning
https://www.myjewishlearning.com/article/reincarnation-the-transmigration-of-a-jewish-idea
One of Luria’s followers, Rabbi Hayyim Vital, in his book Sha’ar HaGilgulim (“The Gate of Reincarnations”), explicates in great detail how these dynamics can play out over the many generations. According to Vital, souls are reborn specifically to perfect certain aspects of themselves or to complete unfinished tasks.
The Jerusalem Post (July 4, 2019) has a good article on gilgul (reincarnation)
https://www.jpost.com/Israel-News/Culture/Return-again-Reincarnation-in-the-Jewish-tradition-594485