A Hard Swim

It’s hard to swim in cement
Unless you catch it early.
Even then, I must lament,
You should continue stirring
To keep from turning fossil.

You have to meet the hostile,
The harmful, harsh and hard
If you’re to get full grown.
To swim among the stars
Dive into the stone.

I’ve never been so strong,
This is the health I’ve sought,
The practice has been long
Doing laps in parking lots,
Training for granite seas.

Nothing worthy’s done with ease,
So stop smirking like a trout!
You float the world like a duck.
Help me out!
You know I’m stuck!