the meaning is actually about the band and their friends.They realised everybody's moving on/changing having a family life and they're still writing songs.
Here Without You - 3 Doors Down
Just Take My Heart - Mr Big
Namidairo n Goodbye Days - YUI
Kehancuran - S'pore's own legendary rock kapak band ROCKERS
Tears In Heaven - Eric Clapton
if you match up a sad occasion and a sad song then it would really mean something.cant be listening to sad music and no reference to a sad moment in life.