[Coatsy]

And in a way, isn't it comforting to know that the enduring biological parts of you are returned to the earth and indirectly contribute towards the growth of further life.

That's why coffins and cremation are really pretty selfish. One packages all your nutrients and biological compounds up in a wooden box away from the soil, and the other incinerates everything past the point of immediate utility.

Admittedly, over the longer course of time, you will eventually return entirely to the resources of the ecosystem. But the whole idea of trying to preserve the body in any way is completely unnatural.

EDIT: usefulness > utility