How does Briony change as she gets older?

Initially Briony is a precocious 13-year-old with
aspirations of becoming a writer. She is the baby of the family, but her imagination is
anything but babyish. Although her stories are somewhat awkwardly written, they
illustrate a girl who is already aware of the disorder inherent in the real world and
who finds satisfaction in bringing order to the fictional world she creates. This will
have a tremendous effect on her life and that of the people closest to
her.

And now a very tricky point: upon first reading,
Atonement seems to have an omniscient third person narrator. We believe that we can
trust this narrator to be telling us the full truth about the story and the characters
that inhabit it. However, once we reach the final section of the book, we learn
otherwise. Once we learn that older Briony was the narrator all along we view the story
differently. Certainly, we give more value to comments such as, “It wasn't
only wickedness and scheming that made people unhappy, it was confusion and
misunderstanding; above all, it was the failure to grasp the simple truth that other
people are as real as you.” When we are given such a peek inside young
Briony’s thoughts we see that she is a young girl trying to better grasp what it means
to not be Briony.

As a young girl she struggles a bit with
this. At one point she expresses frustration with how her first attempts at drama have
illustrated the inevitable need to “make use” of others. This young Briony is a far call
from older Briony. As our narrator, her saying, “In Leon's life, or rather, in
his account of his life, no one was mean-spirited..." is important. That “or
rather, in his account of his life” illustrates that Briony has come to accept, with old
age and experience, that each human being is their own narrator, perceiving life and all
it brings in their own fashion.

If younger Briony had known
that fact, she never would have presumed to know what transpired between Robbie and
Cecilia, nor would she have jumped to conclusions which led Robbie to be accused of
being Lola’s molester. Older Briony is attempting to atone for this serious “crime” as
she calls it, by writing the novel we read, by empathising with other characters. It all
harks back to young Briony asking herself, “Was everyone else really as alive
as she was?...If the answer was yes, then the world, the social world, was unbearably
complicated, with two billion voices, and everyone's thoughts striving in equal
importance and everyone's claim on life as intense
..."

As most of us, Briony grows up
and matures. It is most unfortunate, even tragic, that before she matures she sets in
motion a chain of events that negatively impact her family. Ultimately, she at least
tries to redeem herself through writing “Atonement”. Whether she is successful at this
remains up to personal opinion – I have never encountered a book that divides my
students quite as much as this one. However, Briony Tallis’ growth is, in my opinion at
least, undeniable.