Final answer:
A mournful mood in poetry is usually established through the use of evocative language, imagery, and themes related to sadness and loss, as seen in the works of Arthur Symons and Georgia Douglas Johnson.
Step-by-step explanation:
The mournful mood in poetry is often created through specific word choices, imagery, and themes that reflect sadness, loss, or longing. In the excerpt from Arthur Symons' poem, the repetition of the phrase "crying for rest" and the depiction of unresting water create a sense of sorrow and yearning. The reference to "the last moon droop" and "the last tide fail" evoke a feeling of ending and exhaustion, further contributing to the mournful atmosphere. Similarly, in the lines from "The Dreams of the Dreamer" by Georgia Douglas Johnson, the imagery of "life-drops that pass" and the "break in the heart" suggest a sense of loss and the inevitability of sacrifice, enhancing the somber tone. These examples demonstrate how poets use language to create powerful emotional responses in their readers, weaving a mood that resonates with the themes of the poem.