I forgot to mention that I absolutely love this song. And if you really think about it, the phrase "nothing lasts forever" is so meaningful since it is true of many things in life, everything dies eventually, I. E. A human beings, plants, a car, etc., even if it doesn't dies completely, it deteriotes eventually. In life, nothing can remain the same, even if it takes years to get to that stage. Like s*, for example. Eventually, our bodies don't allow us to continue having it.