I'm sure traditionalist won't agree with you and say this is not karma, but I like your reflection seeing karma not only as a larger picture (which it is) but connects to other's karmas that moves away from the individual level to awareness that simply says we each contribute to the universe and what we do in it is important and has effect in unexpected and unseen ways (as well as seen). I have to say, to me, what you've said zareste is more important then (any concept of) karma we argue.