The main idea of the poem is that the life is similar to a drama where every individual is playing a specific role.
Explanation:
In the sonnet "All the World's a Stage", Shakespeare presents a comparison between the functioning of the world and the lives of the human beings. He demonstrates the world to be a stage, where every individual plays a specific role. Every individual is born and has a specific time for death. This is compared with the entry and exit of the actors on the stage. The roles that the actor play in the drama is similar to the roles that an individual plays in his life.
I think at this point in the book Aunt Alexandria has been spending more time with scout and answering Atticus' promise of giving her feminine influences
The simile of Lines 18 through 23 compares the storm clouds that whip across the sky from the horizon to the zenith to: locks of hair of a frenzied woman. (Ode to the West Wind).