Really, she was shocked that she should havecome to this; she had grown so fat; so lethargic; and she bowed her headover the linen so that this apparition of a grey woman in fur, and a girlin Russian trousers, with all these smells of wax candles, white flowers,and old ships that it brought with it might pass behind her back unseen
I find it interesting that in this one moment, Orlando saw Sasha, the woman she once loved. After all this time, she still hadn't overcome the heartbreak of the person closest to her heart leaving her. She still had intense feelings for her in spite of the hundreds of years that had passed. Because the image of Sasha in her youth has seared itself in her mind, she is surprised that the woman in front of her is so fat, and hides from this person, having seemingly overcome her feelings of passion.