In the book of Ezekiel, the prophet sees a valley full of dried bones. (This is far from the weirdest thing he sees. His visions could conceivably involve some serious drugs.) God causes the bones to link up with each other and rebuild bodies. From this chapter, we get the song “Them Bones” in which the knee bone connects to the thigh bone and so on.
The song, as anatomically incorrect as it can be, does have a point.
The parts of our bodies connect. What happens in one part affects neighboring parts and ultimately the whole system. This is why, for example, a person with a sprained ankle begins to feel pain in the opposite hip or side or even shoulder. Each connected part compensates for the hurt bit and feels the strain of it.
We can frame this in a much more positive direction, though. When we work on aligning any part of our body better, we improve the whole. Working, say, on ankle mobility can make our knees and hips work better. Getting a little more movement in our spines can help our shoulders.
The part affects the whole. So anything we do is likely to be a Good Thing.

