The sonnet is a poem of Italian origin structured in two quartets and two tercets, with undecasílabos verses and consonant rhyme, of the formula: ABBA - ABBA CDC DCD, serventesios can also be used instead of quartets, in which case the rhyme would be ABAB . ABAB. However, the use of serventesio in sonnets is not very common because it is used mostly in satirical creations. In what he did well about the choice of the sonnet as a form for his beautiful poem is in the emotional charge: that nostalgia that presages and lets flow like a river, is the last consciousness that expresses a sense of loss of useful time and quality of life. I congratulate your creative art, @ajremy.