Answer and Explanation:
1. The poem has 6 stanzas with a non-linear number of lines between them. The poet probably used this type of extruturing to maintain the disproportionate and non-linear character that the subject addressed in the poem requires. It is difficult to outline what is true for us, especially when you are in an environment that can be oppressive and racist at many times. The author shows that his opinions are strong, although they do not follow a linear pattern.
2. The beginning of the poem is market for the affirmation that if you write what comes from you, your writing will always be true. What marks the medium is the poet's reflection on what is inside him, what is the truth for him. What marks the end of the poem is the conclusion of the poet, about all this brainstorm that he just went through.