War is PeaceFreedom is SlaveryIgnorance is Strenth
The whole world was descripted by Winston as gray, dark and smelly. All houses had a telescreen which not only monitored your actions but your face expressions. All media services were programmed to put political propaganda and messages into people's head.
It was recurrent the use of senses to represent life and feeling alive. Through little details like smells, tastes and colors Winston was awakened from that bubble in which people lived due to the control of government.
Things aren't what they seem. Even though we don't live in such a dystopia, we are exposed to multiple stimulus and we're in a certain way brainwashed into the same system forgetting about thinking for ourselves and living in routine like living dead.