The poem
Enigma = (A Flower Dream)(Truth) ⁄ [the hand holding up the flower]
The value of enigma is to the value of a flower dream as the value of truth is to the value of the hand that holds the flower up.
A term with no word in it
Three of the four terms are written. The fourth is not: below the fraction bar there is a hand holding up a small white flower. The denominator is a picture, and it has to be read as a term, the way the words are read as terms.
A similar triangles poem is a proportion, a ⁄ b = d ⁄ e, and a proportion can be rearranged without changing what it claims. Solving this one for its image term puts the picture on the left of the equals sign.