In July's People, how did Maureen's character grow and evolve while she was outside soaked in the rain? How did her character evolve when she becomes one with the landscape?

Maureen's character evolved significantly while she was outside soaked in the rain, although this evolution was not entirely positive. Alone in the bush, Maureen comes to realize that her values and even her thoughts are relative to her surroundings. She has shed her traditional European clothing in favor of nudity, marking an evolution in her thoughts towards propriety and modesty. She once judged the village women for their nudity, yet she seems to view her time in the rain as a baptism. It is this experience that marks the turning point in Maureen's character and leads to her feeling of becoming one with the landscape. She notes on page 48 that her body temperature is the same as the rain's, further driving home the idea that she has become one with the forces of nature.
The Evolution of Maureen's Character
Maureen's transformation is a gradual one. She experiences a second baptism of sorts when she discovers that a helicopter is coming into the village. While she previously warned the children about playing in the water, she now wades into it fearlessly. This shows she has evolved past fear and decides to take more risks in life. Another interpretation is that she no longer has the same mundane concerns that plagued her when she first arrived in the village.
There is another scene in which Maureen finds herself staring into the vastness of the bush, an experience that makes her question her own identity. She feels as though she has been filled with nature and that there is no room left for her except to remain as a passive observer. At the end of the book, we see the dramatic toll this transformation has taken on Maureen's character. In the beginning, she believes her family ties and bond with July are much stronger than the harsh reality of the bush proves them to be. When the helicopter arrives, she is all too eager to abandon her family and effectively join the rebels in order to be rescued. There is little trace of the liberal, devoted, and maternal Maureen who existed at the start of the story.