Growth is likely a theme. Both the growth of the daughter as she matures and the growth of the parent in their role as a caregiver. Another possible theme could be family dynamics, exploring how the addition of a daughter changes the family unit and relationships within it.
Love could be a major theme, the unconditional love a parent has for their first daughter.
The theme of identity might be present. As the daughter grows, she forms her own identity, and the novel could explore how the parents influence this process. Also, the theme of sacrifice could be there. Parents often make sacrifices for their children, and this could be a central aspect of the story in 'My First Daughter' novel.
Identity could be a major theme as well. The secret daughter would have to grapple with her own identity, and those around her would also need to re - evaluate their understanding of who she is in the context of this new revelation. This could involve issues such as self - worth, belonging, and the search for one's true place in the family and society.
One possible theme could be self - discovery. Discovering one's sexual orientation and coming to terms with it is a big part of such a story.
One possible theme could be friendship. Animations often revolve around characters forming bonds and helping each other out.
Nature and its beauty could be a major theme. Geese are part of nature, and the story could be about the wonder and awe of experiencing a goose in its natural habitat for the first time. It could also touch on themes of growth, as in the growth of understanding about the natural world through this encounter with the goose. Also, the story might carry a theme of simplicity, highlighting how a simple encounter with a goose can have a profound impact on a person.
One possible theme is self - acceptance. Discovering one's homosexuality and learning to be okay with it. Another could be the theme of love, the first time falling in love with someone of the same gender. Also, the theme of courage might be present, as it often takes courage to face the world when realizing and accepting one's gay identity.
Responsibility could also be a theme. Maybe your daughter took on a big responsibility in the story and her sense of honor made her fulfill it to the best of her ability. For example, if she was in charge of a project at school or in a community group, her honor could have driven her to complete it successfully.
Another theme might be justice. If the daughter was taken unjustly, the story could be about the family's fight for justice to bring her back. It could involve fighting against illegal activities such as trafficking or abduction.
One possible theme could be sacrifice. The parent or someone in the story might sacrifice their own time, resources, or even their reputation to safeguard the daughter's honor.
One possible theme could be family love. No matter what the cost or difficulty, the family is determined to get their daughter back, showing the deep bond between family members.
Grief and loss are obvious themes. It could show the different stages of grief, from denial to acceptance. Another theme could be the impact of her death on relationships, like how it affects the relationship with a spouse or other family members.