What is the meaning of song part you by Katy Perry?

The song "Part of Me" by Katy Perry is about breaking free from a toxic relationship and finding the strength to move on. In the song, Perry sings about how she was once "half of you" and "part of you," but now she is ready to be her own person. She refuses to be held back by the past and is determined to find happiness on her own terms. The song is a powerful anthem about self-empowerment and resilience, and it encourages listeners to embrace their individuality and never give up on themselves.