Dream Ball Book

Can you think of a word
That is linked to all three?
Now try this—pick a word

Sleep mail switch salt sleep foam.
Have you twitched a slight smile?
Ah, the poems shrinks think of.

Poems that have links or don’t.
Tests with things that will tell
You what you do or don’t

Or should or could or, no,
Can’t know. Which words must go
With your dreams in such books?