Thus, in the first movement of Burnt Norton, the theme of Time and its end is introduced in the voice of impersonal thought, seeking a universal truth through abstraction, logical argument, and the resolution of paradox. This modulates in the course of lines 11-19 into a personal voice with a contrasting sense of "What might have been and what has been," a sense arising from experience rather than from abstract argument. Memory and imagination combine in a sustained development of this second theme as a paradoxical experience of the world of light. At its close, ("a cloud passed and the pool was empty"), this voice rises in intensity - and then abruptly gives way to the detached voice of the opening lines. The arrangement of the voices in the second movement is the reverse of the first. It opens with a passage of taut lyrical writing in a symbolist manner, as if memory and imagination were essaying their own statement of the universal truth of sensual experience. Then thought takes over and continues to the end in a sustained exploration of how time and the sensual body might be transcended. "At the still point of the turning world" appears at first to take up the conclusion of the lyric; but the series of paradoxes would have us conceive a realm beyond sense and contrary to sense. In fact the meditation begun in the opening lines of the poem is being resumed. If there is a pattern in earthly experience it is because "the one end, which is always present" may be found "At the still point of the turning world." The meditation unfolds through three distinct sections: eight lines of paradoxes determined by negatives and exclusions are followed by nine lines positively affirming what is to be aspired to; then there is a return to the inescapable complications of a consciousness that is in time and in the sensual body. Here memory and imagination re-enter, but now we find that they have been incorporated into the process of thought and subjected to its perspective and its ends: "only in time can the moment in the rose-garden ... Be remembered; involved with past and future."
In the third movement the thought does what it will with the world of experience, determining its nature, and then dismissing it with outright satire. With "Descend lower, descend only" the meditation modulates rather suddenly into a third voice, that of prayer or exhortation. The desire and direction of the will which have been present but in suspense from the beginning here reveal themselves as the motive-force behind the thought, from which they effectively take over now that it has done its work and prepared their way. The fourth movement, like the lyric at the start of the second movement, is an account of the world of experience. But it differs from it in being informed by the thoughtful critique of experience, and it affirms the light that is beyond sense. Moreover, it does this with an air of desiring to be with that light, and thus to transcend time. It would seem then that the three voices previously made out, and which have followed one upon another, are here heard in unison, thus producing the fourth voice which completes the quartet. It is wholly characteristic of Eliot that there should be a hierarchy of instruments, that the lower should give rise to the higher, and then be caught up into the ultimate voice and vision. (In the fifth movement of Burnt Norton the three individual voices are heard both separately and together.)
From "Four Quartets: music, word, meaning, and value." In The Cambridge Companion to T. S. Eliot. (Ed.) A. David Moody. Copyright © 1994 by Cambridge University Press.