Final answer:
The personification of heat in H.D.'s poem likely contributes to creating an urgent tone, implying the overwhelming power of the heat.
Step-by-step explanation:
Personification is a stylistic choice often utilized in poetry to attribute human qualities to non-human elements. In H.D.'s poem, the personification of heat as capable of shaping objects, specifically 'blunting' fruit, most likely helps to create an urgent tone, suggesting that the heat is powerful and potentially overwhelming. This technique draws readers into an immersive experience, where they can feel the intensity and pressing nature of the environment depicted in the poem. Identifying the specific tone depends on the larger context of the poem, but based on the description provided, urgency seems to be a prominent feature. Otherwise, personification could create various tones such as fear of fire, admiration of strength, or even anger over spoiled fruit, but these are not supported by the context provided.