The longing to talk to someone! But in the end she had gone to her room without giving in to the craving.
Once in the room, the door locked, the sense of loneliness had dropped away from her as the mists used to drop away from the mountain in the morning.

Even then she had understood vaguely that she had touched upon some philosophy of life: that one was never lonely when alone, only in the midst of crowds.
Another picture slid across her vision.

She saw herself begin a slow, sinuous dance: and stop suddenly in the middle of a figure, conscious that the dance was not impromptu, her own, but native--the same dance she had quitted but a few minutes gone.

She had fallen into it naturally, the only expression of the dance she had ever seen or known, and that a stolen sweet.

That was odd: when young people were joyous, they had to express it physically.