The Main-Sequence of the prime series, in which each number is the index (or ordinate) of the next, proceeds: 0, 1, 2, 3, 5, 11, 31, 127 …

This numerical sequence is the architectonic principle of Nazareth Modo’s ‘Modular Poetics’. The consummation of the form is found in the Echelon Module, a composition of – exactly – five verses, eleven lines, thirty-one words, and one hundred and twenty-seven letters, containing (as its final part) a module of three verses, five lines, eleven words, and thirty-one letters, containing (as its final part) a module of two verses, three lines, five words, and eleven letters, containing (as its final part) a module of one verse, two lines, three words, and five letters, containing (at the end of its final verse) a module of one line, two words, and three letters.

The first line provides the title.

As an example, here is Modo’s When that which remains, which is thought to be his first achieved instantiation of an Echelon Module (and thus — almost certainly — the first to exist on this earth):

When that which remains
Inside out
Twists into itself

So
Am I

(It’s OK to ask ‘why?’)

Modo’s minor module It is my duty cited here.