In the story, the protagonist, a woman named Sarah, is at a crossroads in her life. She is feeling lost and unsure about what to do with her future. She decides to take a walk in the park, and as she is walking, she sees a little girl playing with her father. The little girl reminds Sarah of herself when she was a child, and she realizes that she has come full circle. She now understands that she needs to embrace her past in order to move forward with her future.
The story also explores the idea of fate and destiny. Sarah's encounter with the little girl seems to be a sign from the universe that she is on the right path. She realizes that she is not alone in her journey, and that there are forces at work that are helping her to find her way.
Overall, the theme of "Full Circle" is that life is a journey that is constantly moving forward, but also has a way of coming back to where it started. It is a story about finding one's way in life, and about the power of fate and destiny.