How did Dante Gabriel Rossetti use small details to create mood in poems such as My Sister’s Sleep?

In his poetry, Dante Gabriel Rossetti employs small, seemingly trivial details to subordinate descriptive elements to the intensity of emotion and the evocation of a specific mood.

In the poem "My Sister’s Sleep," Rossetti uses these subtle touches to suspend the sense of time and to make the silence of the sickroom palpable to the reader. Unlike his paintings, where the accumulation of details regarding costume and greenery can sometimes become cloying, the details in his verse are carefully selected to serve the poem's atmospheric and emotional goals.1