Hi again...

I had this dream:

It was christmas time. In my dream I am younger than I am now. I think I was about 6 years old.

I am walking in a street I have never seen in my life. My father is walking next to me. My sister is next to me aswel. Sister is left, dad's right. There is a thick layer of pure white snow all around. However I am not cold. There is a pleasent admosphere.

Suddenly this chubby old man comes towards me and he says hello to me. I look at him, wondering who he is. He looks dissapointed that I do not recognize him.

We walk on, because my father said we had to keep going. Then I ask him, who was that man? My father says, it was Santa. Then he says something that was either:
he forgot about you this year
Or it was:
why did you not recognize him?
I feel guilty. I want to go to him, but then I look behind me and I see his sledge flying against a wall and it breaks, which I know was not intended somehow because it was supposed to go trough the wall not break against it. I want to go to the sledge but my father says I can't and we have to walk on.

What do you think it could mean?