Every line here sets up a world turned upside down. Chills in the inferno, hills in the ocean, a sea in the desert: each one puts something where it shouldn't be. The poem calls itself "Metaphor" and carries the subtitle "Two Faces," so these mismatched pairs seem to point at a split between opposite natures, like fire and cold, or dryness and water.
The last line of the quatrain is where it turns personal: "In this world, there is me." The speaker seems to place themselves among these contradictions, as someone who also doesn't fit one category and holds two sides at once. The poem never says what those sides are, so that part is left to the reader.
Then comes the sudden, short "To burn it!" It reads like an outburst, a burst of anger or defiance, perhaps against the whole contradictory world, perhaps against the self. The mood is restless and playful at first, then abruptly intense, leaving a feeling of tension that never fully settles.