In the perspective of hermeneutics, the meaning of the text has the space to be understood and interpreted constantly. In terms of the significance of metaphysical poetry, it can be expanded in three dimensions: the first is the level of metaphysical poetry text; The second is the level of metaphysical poetry criticism; The third is the critical level of metaphysical poetry criticism. At the level of text, from the suspicion of women, the pursuit of sex, the desperate cry for God, and the combination of earthly love and faith, metaphysical poetry has completed the pursuit from the duality of spirit and flesh to the unity of spirit and flesh. In the aspect of metaphysical poetry criticism, the critic firstly criticizes the similarity between metaphysical poetry and Baroque art and natural science, and then criticizes the similarity between metaphysical poetry and other poets and schools of poetry on the two characteristics of "singularity" and "fantasy", and explains the new significance of metaphysical poetry. At the level of the history OF criticism, THE THEORISTS of THE New CRITICISM recriticize the metaphysical poetry from the two paths of reverse creative criticism and negative creative criticism, and expound the significance of metaphysical poetry at a deeper and more essential level. Metaphysical poetry is the interweaving of these three dimensions under the continuous interpretation of the extended space.