Final answer:
The main idea of the first stanza of 'Auspex' is not explicitly provided, but an exploration of rhythm and tone in poetry suggests it may involve themes of movement and emotional intensity, conveyed through the careful choice of words and structure.
Step-by-step explanation:
The main idea of the first stanza in the poem Auspex isn't provided in the references, but the detailed discussion about rhythm and pace in connection with Alexander Pope's work suggests an emphasis on the use of poetic devices to convey movement and feeling. For instance, the interplay of iambic pentameter and variations of stresses within the poem contribute to a sense of speed and intensity in the descriptions. Similarly, examples of other literary pieces demonstrate how rhythm, tone, and pace can reflect emotional states and significant moments, such as fear, anticipation, and the revelation of a 'fearful' wait in the passage that centers around 'free, free, free!'.
It is important to consider how a poem's structure -- such as the use of iambic pentameter or the strategic placement of stresses -- significantly affects its tone and the emotions it evokes. In the case of the poem mentioned, the feeling of speed can be tied to urgency or a rapid change in state, which may reflect the experiences of the speaker, depicted through both stylistic choices and thematic elements.