How can we give to G-d? G-d doesn't get anything when we do a mitzva.....
(See this link for an interesting take on this question)
The entire issue seems a boondoggle to me. Just like figuring out exactly why and to precisely what I am addicted, bechirah and yediyah, bechirah and addiction, bechirah and a nice saffron rice pilaf with chateuneuf... Finally figuring these deep (and useless) things out is just something I am too stupid to do, I figure. If I were smart enough, though, would it matter?
I choose (that's bechirah, for you) to relegate these issues to the dustbin of my mind, where issues like "how refrigerators, my intestines, and women really work" are put to rest.
Scratching those itches may not help me, but responding to the things that have already kicked my butt hard (to get my attention) certainly will help me. Things like:
Luvya, bud.