the problem with trying to understand past karma, is if you try to go too far back youre really just playing a game of sorts.
but if we just take our present life, and our kamma made in this life we can see how it plays out in our daily lives.
i chose to drop out of uni years ago, i though i had the rest of my life to play around, my wife had a good job and i was pretty well taken care of (physically, emotionaly i was in a very abusive and crappy situation)
this was my choice. my kamma. it hasnt been the best of choices for me. my marrage ended, which has been great for me in many ways, but i have to take crappy jobs cause i'm considered uneducated, i used to work with scientists and be consided somewhat of an intelectual, now i get no respect, and people assume i'm some lazy idiot.
thats my karma. does it determine my actions? yes, very much so. i'm presently getting ready to go back to uni. i hate the life i made for myself, i hate that i'm not in a position to just buy whatever i want for the girl i love, or just go to thailand with her to visit her parents etc. my past life, plays out everyday in my present one. it doesnt determine what i do, or who i will be. but it has an effect.
สัพเพ สัตตา สุขีตา โหนตุ
the mountain may be heavy in and of itself, but if you're not trying to carry it it's not heavy to you- Ajaan Suwat