How did Miranda develop in the book?

Before her imprisonment, Miranda had apparently never interacted with anyone as narrow-minded as Clegg, or as oblivious to high culture as he is. Her interactions with Clegg open up her mind to the sheer diversity of viewpoints in England; he does not view the world from her perspective, a perspective which is very much a product of Miranda's upper-middle class childhood and education. More importantly, her imprisonment makes her appreciate all that she had in the outside world, from simple pleasures such as sunlight to deeper ones such as her relationship with G.P. For Miranda, it takes a brush with the precariousness of her own life to come to a deeper understanding of how she wants to live.