DE·COM·PO·SI·TION
/dēˌkämpəˈziSH(ə)n/
noun
the state or process of rotting; decay.
Decomposition is an interesting subject as a conversation topic. It's a fundamental procedure in which deceased organisms are broken down into a simple organic matter, that provides nutrients to other living organisms. Also, it demonstrates the unavoidable fate of death. It's a tragic story, yet it's beautiful.