Angel, maybe

I had a dream a while back, when I was in confusion about myself and the dream was that I was following a woman through the woods and it was snowing. She had long white hair, a white gown, a white crown, and sparkling blue eyes, and she looked to be in her early 20's. I was following her through the woods and she brought me to a small clearing surrounded by trees. She faced me and said, "I will grant you one thing your heart desires most..", and as she was saying that, she was slowly floating up into the sky and then disappeared.

Does anyone have an idea of what this may mean? Or who/ what she may be?

Thanks for your help.