2 .
"And so we stood together like that, at the top of that field, for what seemed like ages, not saying anything, just holding each other, while the wind kept blowing and blowing at us, tugging our clothes, and for a moment, it seemed like we were holding onto each other because that was the only way to stop us being swept away into the night"
The terrible force of the wind threatens to "sweep" Tommy and Kathy "away into the night"
The wind represents the terrible forces of the world which will soon cause Kathy and Tommy to be "swept away into the night"
The wind "blowing and blowing" will "sweep" Kathy and Tommy away into the "night"
The wind "blows" and "blows", "sweeping" Kathy and Tommy "away into the night"