There is no more misunderstood spiritual topic among westerners than karma. It does not mean what goes around comes around. Even western writers who almost get its true meaning, miss that it boils down to intent. Recently, I read the most complete essay on karma here in Illumination. I urge you to read this masterpiece by
Infinitians

https://medium.com/illumination/the-real-meaning-of-the-law-of-karma-will-blow-your-mind-f07fe413ebce