For Mildred Nash 
  
Coincidence.  Perhaps coincidence 
Explains it all.  Why look far out, in deep 
For mystical solutions to make sense 
Of how a dream disturbed more than my sleep— 
A dream in which you sat bolt upright on 
A Windsor chair and wore a long blue dress 
(Ornamented with a white chiffon) 
And on your visage bore a dark distress 
And said your dog was dead?  When I awoke, 
I thought the dream an impetus to phone, 
And when I did, the first words that you spoke, 
Through sobs, were that your cat had died.  Your tone 
Was as it had been in my dream, which plain 
Coincidence tries too hard to explain.
David Berman
http://www.poemhunter.com/poem/coincidence-9/