What happens in the natural world when rain begins to fall after a period of drought? How does the built world change when rainwater pours over it once again?
In what ways do people change–in mind and body–when the weather goes from dry to wet? What types of activities or habits reappear in a person’s life when rain begins to fall? What disappears?
Think about these things, and write about them.
Think some more. Rain after drought can remind a person of processes that are similar. Perhaps you will write about them too.