One possible theme is identity. The girl might be struggling to find her identity before the story unfolds. She could be in a situation where she has to figure out who she really is, among different influences like family, society or her own dreams. Also, friendship could be a theme. There might be important friendships in her life before the story that shape her in some way.
One possible theme could be self - improvement. The girl in the story might be striving to become a better version of herself.
One possible theme could be self - acceptance. The flat girl might struggle with her appearance at first but then learn to love herself as she is.
One possible theme could be transformation. Since the girl is melting, she is going through a physical change, which can be seen as a form of transformation, either forced or natural. Another theme might be vulnerability as she is in a state of losing her physical form, making her extremely vulnerable.
One possible theme could be cultural identity. Indian girls often have a rich cultural background and may struggle to balance modern influences with their traditional roots.
One possible theme could be survival. If the girl is a hunter, she likely has to use her skills to stay alive, whether it's finding food or protecting herself from threats.
One possible theme is resilience. Despite being blind, the girl can keep going and face life's challenges bravely.
Hope could also be a theme. Even in her poor state, the girl may hold on to hope, believing that things will get better someday, whether it's through her own efforts or the help of others.
Love could also be a theme. Maybe she falls in love with someone who is not from the same social class or someone her family doesn't approve of at first. It would create a lot of drama and tension in the story. Also, growth and self - discovery could be themes. Through her experiences in the mill and in the community, she might learn more about herself and what she wants in life.
One possible theme could be discovery. If the girl in the story is exploring something new related to mustard, like a new recipe or a hidden property of mustard. Another theme might be family, if mustard has some sort of family heritage or tradition associated with it in the story.
One possible theme could be isolation. Living near a lighthouse can be quite isolating, and the girl might experience this, which could be a central theme. Another could be hope, as the lighthouse itself is often a symbol of hope for seafarers, and the girl might embody that hope in some way. Also, growth is a possibility, as she may grow and change in the unique environment of the lighthouse.