what is the "golden country"?

The "Golden Country" is a place in Winston's dreams..... In Chapter Three, he isn't certain if he has ever seen it in the real world.

"In his waking thoughts he called it the Golden Country. It was an old, rabbit-bitten pasture, with a foot-track wandering across it and a molehill here and there. In the ragged hedge on the opposite side of the field the boughs of the elm trees were swaying very faintly in the breeze, their leaves just stirring in dense masses like women’s hair. Somewhere near at hand, though out of sight, there was a clear, slow-moving stream where dace were swimming in the pools under the willow trees."