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(985KB, 720x720) We are composed of dead organisms, and when we die we will decompose and recompose as parts of newer organisms.
We basically survive through the consumption of other organisms. We absorb nutrients from them: carbohydrates, protein, fat, water, vitamins and so on. These are the building blocks of their existence, and now these become the building blocks of our existence, embedded in our bodies for the continuation of our survival.
When we die, we become nutrients to other organisms, we are decomposed, mainly by bacteria if we are buried underground. These bacteria will be eaten by bigger bacteria, then moving up the food chain, from protozoans up to birds and reptiles and mammals of any kind.
If we are cremated, the carbon atoms of our bodies fuse with oxygen atoms and are released as CO or CO2. They will be absorbed by plants or photosynthetic microorganisms, which converts CO2 to carbohydrates. They will be eaten by other organisms, moving up the food chain.
Hence, after we die, we go back to the food web, and every little part of us becomes a part of another living organism. Therefore, after we die, we somehow go back to many newer life forms in such a way, consisting a small part of each newer life form.
