Judging by the title only, one is entitled to believe that the poem is about things or facts or deeds that are not allowed to happen. Thus, the reader is curious to read beyond the words in order to decode the meaning of it. The title can be seen to be more than an intriguing invitation to a reading.
The poem has an interesting pattern of seven stanzas of different length (in lines). There is a two-line stanza in the beginning, being followed by a tercet (a stanza of three lines), and then by stanzas made of five lines, four lines in an alternation. The last stanza is a tercet also. These stanzas function much like paragraphs in prose (these groupings are often called verse paragraphs).
Poem Analysis: Forbidden Poem, by Tony Mitton
