How can we connect Winston's hallucination of his sinking mother and countryside to Big Brother in the novel?

In 's dream
of his sinking mother, she and his baby sister are in the saloon, or great room, of a sinking
ship. They are sinking, but there is still air in their ship, and they are looking up at him. He
is safe, but they are dying.

Winston understands, as he ponders the dream,
that somehow they sacrificed their lives for him. He then thinks that it is impossible that such
a personalcould occur anymore. He ruminates,

Tragedy, he
perceived, belonged to the ancient time, to a time when there was still privacy, love, and
friendship, and when the members of a family stood by one another without needing to know the
reason.

This connects to Big Brother, because the image
of Big Brother has replaced the family as the center of everyone's loyalty. Big Brother is an
abstraction, a face on a poster or a television screen, not a living human whom you know and are
loyal to in the flesh as you are to a family member.

In the dream of the
Golden Country, Winston comes to a lovely, old fashioned countryside with elms, willows, and a
stream where he meets a dark-haired young woman. She flings her clothes off in one magnificent
gesture. Winston describes this gesture as follows:

With
its grace and carelessness it seemed to annihilate a whole culture, a whole system of thought,
as though Big Brother and the Party and the Thought Police could all be swept into nothingness
by a single splendid movement of the arm. That too was a gesture belonging to the ancient
time.

Both the dream of his mother and the dream of the
dark-haired woman represent striking out against the world of Big Brother. In both, Winston
defiantly embraces the superiority of a former timean "ancient" time, though not so
long agowhen people were allowed to have free, individual, loving relationships with each
other.