Missing

Where do they all go, the letters 
        and cards that were written 

and mailed but never arrived at their 
        destinations, or got returned to 

their senders? Sometimes the moon 
       looks like the flap of a creased 

envelope— whatever message or instruction
       it bore has slipped into its dark 

pocket. Now it is swimming so far out 
       at sea, to a country not yet discovered.