Eyes are a recurring motif in the poem, and their function reminds me of the Existentialist concept of the gaze. In section II, the hollow men want to stay far away from the eyes, which are like sunlight on a broken column (perhaps them men themselves?). They do not want to face their fate and sentence in the twilight kingdom. Later, in section V, we see the Shadow, which separates the minds of hollow men for reality. Such a mechanism reminds me of Bad Faith. Other Existentialist concepts are no doubt on display in this poem. Can anyone offer a more?
I think the children's rhyme verses in the poem are very interesting. We are provided with a footnote which helps to explain the significance of the verses at the beginning of section V. However, I think that something similar should be said for the verses at the end. The two sets of verses clearly serve as "bookends" for the section; it would be reasonable to assume that Eliot based his poem's final lines on a children's rhyme as well. If not "Here we go round the mulberry bush", perhaps "This is the way we clap our hands"? If we accept the imagery of going around in circles ("Here we go round the prickly pear") as a reflection of the lives of the hollow men, perhaps the bookends serve a similar purpose. How do you interpret the verses?