[Poetry] may make us from time to time a little more aware of the deeper, unnamed feelings which form the substratum of our being, to which we rarely penetrate; for our lives are mostly a constant evasion of ourselves. - TS Eliot
Consider these aspects of Eliot's style:
juxtaposition, romantic irony
clusters of images and symbols
the use of multiple literary allusions
the influence of Dante
his use of "free verse" and many various poetic forms.