The form of Keats' "On the Sea" quite literally mimics the appearance of the sea. The structure of the lines mimics the formation of waves. Thanks to the way the lines are indented, the poem appears to undulate, much like the waves of the sea. In this poem, the poem's structure and subject matter are intertwined
He accepts that Sobel will marry Miriam, even if her life may not be easy with him. In the end, he feels resigned and accepts that they will get married.