I stepped into the ocean

I stepped into the ocean, it was cold
At first but then I got used to the sting.
The lapping waves spoke with a voice so old
At first I couldn't hear the siren sing.

She said, the key is in the blue water.
The longer I stared at the opaque sea,
The more I saw, the water grew warmer,
My urge to swim got the better of me.

I plunged, I sputtered, I opened my eyes,
Scanning Poseidon's domain, I saw fish.
Searching for something, my nameless desires,
No gods and no siren granted my wish.

The ocean is deep, its contents, random
Know not where to look, leave empty handed.