I have learned that most things die.
Sometimes the grass, a forest, a landscape. Sometimes a building, a use or a need and its place in the city. Sometimes a thought we thought to be eternal and, sometimes a word that decays and dies forgotten. Sometimes we replace the things that die with other things that also die. Sometimes we think that we can replace things that have died with other things that we thought that do not die only to find out that they also die like the ones we were replacing.
So do people.