In "Tom's Midnight Garden" by Philippa Pearce, the quote "Nothing stands still, except in our memory" reflects the transient nature of time and experiences. It suggests that while moments pass and change is inevitable, our memories serve as a way to preserve the essence of those moments. This idea resonates throughout the narrative as characters experience shifts in their lives and learn to navigate the interplay between the past and present.

The story emphasizes the significance of memories in shaping one's identity and perceptions. As Tom discovers a magical garden that exists outside of time, he realizes that his adventures are fleeting yet unforgettable. The quote encapsulates a profound truth about human experience: while life is continuously evolving, the memories we create can provide a sense of stability and connection to our past.