The quote "Once a king or queen of Narnia, always a king or queen of Narnia" from C.S. Lewis's "The Lion, the Witch and the Wardrobe" emphasizes the enduring nature of identity and legacy within the fantastical realm of Narnia. It suggests that once individuals have accepted the responsibilities and honors of leadership in this magical world, they carry that status with them forever. This idea reflects the deep connection between characters and their experiences in Narnia, highlighting themes of growth, courage, and destiny.

Moreover, the quote implies a sense of belonging and commitment to Narnia's values and ideals. The characters who ascend to royalty do not merely step into leadership roles; they become inherently part of the fabric of Narnian history. This permanence reinforces the notion that their adventures and sacrifices shape not only their identities but also the realm itself, illustrating how actions in moments of power can lead to lasting change and influence throughout time.