I am not a dog/ But you are the moon

Robert Frost once said that all metaphors
break down somewhere.
I call you a lion,
But you are not a lion,
You will not eat me up and
Spit out my bones.
I call you many things,
But clumsily
So you do not hear the truth in them.
Many like to use the metaphors
Of a key, a room, a door,
But you won’t even give me the pleasure
Of a door-knob.
If our relationship can be called love,
I am the dog barking at the moon,
I am not a dog,
But you are the moon -
and there will never be enough metaphors
to cross the distance between us.