Question about this very short poem?

Question:

Question about this very short poem?

Here's the poem:

A sliver ship on wings of cloud
Glides silent by, as branches bowed
Then stretched their thorny fingers high
To snag the moon as it sailed by

Ok, what is the literal meaning of a sliver ship?

Best Answer - Chosen by Asker:

Are you sure you don't mean 'silver' , which would make much more sense? The ship's the moon, they say that in the final line. I think it's the silver ship though, not the sliver ship. (Twit).