People come and go, like waves in the sand.
Some come in and stay for a while, but retreat back to the ocean, never to be seen again.
Others make an impression, like a sandcastle built by a child. When the sandcastle is washed away, it leaves sadness where it used to bring joy.
Some people ride the waves with you, through eternity.
Why do some people come, and some people go, like waves in the sand?