Final answer:
The 'fall autumn moon' symbolizes the change of seasons, reflects on transition, and creates atmospheric narratives in poetry and literature. In various works, it can symbolize decay, enchantment, or pivotal moments of revelation.
Step-by-step explanation:
The "fall autumn moon" in various literary contexts signifies a change of seasons, a symbol of transition, or a motif that brings atmosphere to the narrative. Typically, the autumn moon carries a sense of melancholy, reflection and the passing of time. For instance, in the excerpt from 'The Deserted Crone', which is not included here but often attributed to Walt Whitman, the moon could reflect themes of decay and transformation.
In John Keats's 'To Autumn', the reference to the "Queen-Moon" amidst "starry Fays" could add an element of enchantment to the autumnal setting, illustrating the ethereal beauty of the season and its night sky.
Lastly, in the passage describing the encounter with the Hermit in 'Madana', the moon creates a mystical ambiance, representing a moment of spiritual or romantic revelation.