In William Carlos William’s “A Sort of a Song,” the line breaks are used as the actual metaphor. In line 11, saxifrage is Latin for “breaking rocks.” The saxifrage flower plants its roots into the rocks and the rocks are split due to the shear power of the downward force of the roots’ destination to the ground. Strategically, the line is broken after “splits” just as the flower splits the rock. The line breakage also contributes to the choice of words. They move, wait and even attack, just as the snake’s actions are in nature. The lines are incomplete, continuing over to the next line. This seems to make the poem a fast read.
Williams’ “This is Just to Say” also has a fast pace due to the line breaks. Each stanza seems to be its own sentence. But the incompleteness of each line ties it in to the following line, creating pauses that help accentuate the main message (I ate your plum, sorry). This poem is more on a personal level with a close friend. He acknowledges that the plum was not his but ate it anyway because he knew he would not be punished for his actions. He was just being courteous by leaving a note just because. The irony in his asking for forgiveness is bittersweet for his friend. The friend at least knows that he was sorry for eating what was not his but also has to throw in how delicious, sweet, and cold the plums were.