https://www.hinduismtoday.com/hindu-basics/karma-and-reincarnation/

This is a good start and explained in a way that’s understandable. The concept of karma is often misunderstood, but I like the way this article explains the journey of the soul and its goal to do good and get closer to self-realization.

In a sense, it helps you process things with your daughter. You as a mother have done all the right things to raise your children and they take a different path, a path that is filled with suffering…..for themselves and others around them. You are here wondering - why me, what did I do wrong? It’s not what you did in this birth, but the pain you are going through is a residue of something you did in your past life. Almost like checks and balances. don’t know if that makes sense….