Tamare.......Personally, in my mind I find no comparison between mathematics and poetry beyond the points that certain poetic forms require a strict adherence to foot and/or syllable count per line, number of lines per verse and/or poem and lastly a defined rhyme scheme.
Of course, knowing there are so many types of poetry, both recognized as authentic and those simply made up in the mind of the poet, I did take the time to check out phi vs poetry and if you are interested, you may find some information here:
Phi and Poetry
Therefore, when you ask, Could this be similar to the 'Golden Ratio' Phi? 6.18? I would have to answer, yes, it is similar.
