Which line is associated with T. S. Eliot's approach to poetry and spirituality?

The line "Shantih shantih shantih" is associated with T.S. Eliot's approach to poetry and spirituality as it appears at the end of his poem "The Waste Land." This phrase, which translates to "the peace which passeth understanding," reflects a profound spiritual yearning and the quest for peace and meaning in a chaotic world. Eliot often integrated themes of spirituality, mysticism, and the search for inner peace throughout his works, particularly after his conversion to Anglicanism. This specific line encapsulates the struggle for spiritual transcendence amidst modern despair, making it a perfect representation of Eliot's poetic philosophy.

In contrast, the other lines are from different poets and embody different themes. The line "I took the one less traveled by" and "And miles to go before I sleep" both come from Robert Frost’s "The Road Not Taken," exploring choices and life’s journey rather than spirituality. The line "The woods are lovely, dark and deep" from Frost’s “Stopping by Woods on a Snowy Evening” reflects on nature and the allure of sleep, without the specific spiritual connotation found in Eliot’s work. Thus, "Shantih shantih shantih" is distinctly aligned with Eliot's themes