How does Orwell use the symbol of the memory holes to deepen the aesthetic impact of the novel and develop the theme?

It is 's job to purge the written records of anything
contrary to the mandates,
visions, and approval of his government:

Winston's job was
to rectify the original figures
by making them agree with the later ones . . . As soon as
Winston had dealt
with each of he messages, he clipped his speakwritten corrections to the

appropriate copy of the times and pushed them into a pneumatic tube. Then, with a
movement which
was as nearly as possible unconscious, he crumpled up the
original message and any notes that he
himself had made, and dropped them
into the memory hole to be devoured by the flames.

This image of fire destroying the truth provides a powerful
image
of the control of the government. It is reminiscent of a Holocaust and
provides aof a Holocaust
of the truth. This government isn't just controlling
its citizens; it is literally rewriting the
history of the world as they know
it to be more in line with its own goals. Winston notes in the
same chapter
that so much of the...