Ok, what I meant when I said life wasn't sacred was that life is not to be preserved for the sake of the body, but rather for the sake of the spirit that dwells within the body. The body is just a vessel and, in a real sense, what we called in grade school science, a "lever." I was also trying to alter the way we "perceive" the concept of life.
Once the body is perceived as a separate thing from the spirit, and therefore only valuable because of the contents (the spirit), all other bodies (cows, whales, mosquitos) can be seen in the context of a vessel without valuable contents. And since the value is in the contents, it makes the other "living things" mere natural resources.
Make sense?
... Make sense? ...Yes. I think so. Thank you for the clarification. But I wouldn't want to call such a description Christian, or at least not Christian in any orthodox tradition: the body is sacred in the Christian tradition, hence the incarnation, bodily resurrection etc., etc.