Final answer:
The missing word in the poetic line about the effect of the intellect on nature's forms is 'seek,' reflecting the Romantic era's valuation of nature over analytical thought.
Step-by-step explanation:
The line from the poem "Sweet is the lore which Nature brings; Our meddling intellect Mis-shapes the beauteous forms of things:-- We______to dissect" is completed by the word seek, which is option (d). In the context of the poem, this reflects the poet's critique on how intellectual analysis can distort the inherent beauty of natural things - a sentiment that resonates with the romantic emphasis on nature and emotion over reason.
The passage presented reflects a romantic appreciation of the natural world and human emotion, celebrating the simple, the profound, and the spiritual. Notably, the quoted lines suggest that our desire to understand and categorize the world around us ("to dissect") can sometimes lead us to miss the beauty in nature's unfettered existence.