Few sighted readers can follow Braille. The envoi therefore resists spelling out the inscription, instead trusting the reader to infer that past conversations are etched into a liminal space—audible only through touch and memory.
The 3rd line is actually describing a real atmospheric phenomenon: cold air pooling in hollows at night, then rising as the sun warms the slopes. It’s counter intuitive because instead of warmth spreading, the ground-level air feels colder as it lifts.
Favouring British grammar and punctuation rules.
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