Message in a bottle

On my
Deserted island
I walk along the largely
Unlettered shore

I wrote poems
Stuffed them into bottles
Sometimes

The messages at first
Were
Please send help
Get me off this place
I’m not where I should be

But the tides
Returned
These cries

Later they were conversational
Talking about the weather
And sunsets

And the tides
Sent these back too

More recently
They contain
Smiling advice
Kind comfort

I influence
The tone

The tides
Decide
The course of correspondence