It was very well written. A good exploration into death and how we all 'decompose with the earth'.
Loved it. You used great imagery to create a beautiful and breathtaking effect. And I really liked the contridiction of a sharp, violent imagery at the beggining with the 'broken jawbones' and 'gouged out' eyes and then having a quite soft description of decomposing...stuff.
The only problem I can think of is that the title doesn't seem to quite fit the poem. I guess it's the whole idea of 'passing on' AKA dying, yet it doesn't seem to match up. My suggestion is to instead link the title with the words in the poem. May I suggest the last line, "The reason for everything". It would work because it means they'd both link together beautifully.
That was a really good poem. I really liked it. Thanks for posting!