Why is the Ocean Blue?

We used to run and build and play
Our joys and plans would fill the day,
We used to whisper and talk and chatter,
Our thoughts were shared on every matter
We used to joke and tease and laugh
Our merriment took unknown paths

But then the hour gets too late
runaway trains with coal in freight,
his fragile mind deteriorates,
the ones at the station can only wait.

The birds disperse, the bats do fly
A light goes dim within his eyes,
standing, waiting, his hands look shy,
he only means to say goodbye.

I used to be able to sit down and read
About the different places in the world.
The seven wonders, the great blue sea.
Filled with great blue whales and great white sharks.
I wondered why the waters were blue
Until someone explained it to me once.
What a sad day that was.