Although I'd rather be cremated, people who know better, like the great astrophysicist Neil DeGrasse Tyson says he wants to be buried so the ecosystem, converts his remains in nutrients for other like forms, in the same way he did by eating plant and animals. Your poem, in a beautiful way elaborates on the idea that "dust returns to the ground it came from". I congratulate your for being able to put that in on many beautiful images in the reader's mind in a way that is uplifting and not the other way around. At least I find it sublime and not macabre.