Dead fish in the river

It goes wherever the river goes. It has no will of its own, no direction of its own. It will rise with the water, and fall with the water. It loses slight parts of itself on the way, but the other living fish don't care. They have their own wills and directions. Ends up eventually in the sea, it will. And now, it's lost in oblivion, and its body decays. It becomes nothing, which makes up everything.