The sound device shown in boldface in the poem is "call"
The mood that has been created by the way this stanza sounds is one of prayer or hope.
Mood in literature refers to the emotions elicits from the reader. This is crated by the intentional use of words by the author.
Thus, is is correct to state that the mood is prayer.
Learn more about mood at;
https://brainly.com/question/12897349
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