Karma?

My son came home from work this morning and told his little brother, "Karma. It's karma. I've been trying to arrange things, trying to figure out what to do and the money just showed up." He asked me, "Isn't it amazing how these things work out?"
I need to look up karma; I've heard the word of course, but I realize I don't actually know what it means. Isn't it pretty much the Indian version of "you get what you give", "what goes around comes around" and the biblical mandate to "do these things that it will go well with you"?

So we're covered for another month of rent and the car is inspected and registered. No insurance yet, and bills aren't paid but I guess that will come too.