A poem is an equation?

     Exiled Romanian poet Nina Cassian (1924-2014) spoke with a daring and imaginative voice that I have much admired.  And she occasionally used mathematical imagery in her work -- as in the following poem:

Controversy   by Nina Cassian
                                          (translated from Romanian by William Jay Smith)
I wrote a poem, an oblique poem,
a kind of calligram, I mean.
Someone said it was an equation
being solved behind a screen.