Incomprehensible

“You must come and see!” I called in my dream.

The lizard inside my front door was huge.

Its body was white, like leather, not scales,

and banded twice in black and red.

I didn’t know where it would run; I was scared.

Then I saw by the lintel what it obscured —

shoved under the carpet, severed of course 

and starting to rot — a horse’s head.

You’d think that would cue me to panic and scream

and wake. But not so. I called once again 

for the men whom I knew were in the back room.

They spotted some other small beast, also dead.

I suppose that these symbols are not what they seem.
Is there some hidden thing in my life to be feared?

For Poetic Asides' bref double challenge