Divination had a branch called dream divination.
It involved divining and predicting the future through the analysis of dreams.
Of course, that required the dream not to be lucid.
Harry could now be certain that Draco was not having a lucid dream. Otherwise, aside from the fact that he would certainly have noticed the McGonagall Bird, his attitude alone would have been wrong.
How could he and Draco possibly get along so well, even holding hands?
Wait, holding hands?
Harry suddenly noticed something wrong and quietly withdrew his hand from Draco's.
To avoid drawing Draco's and Pansy's attention-although this Pansy was most likely just a fictional figure in Draco's dream-Harry pretended to yawn.
Sure enough, neither Draco nor Pansy reacted.
Draco led Harry and Pansy to the white palace.
Along the way, Pansy remained expressionless, only suddenly acquiring an expression whenever Draco turned to speak to her.
Harry could not help remembering the false mental image he had created when he first began practicing Occlumency. Well, Draco's dream was at least far better than the pixelated mental image Harry had started with.
Although the people only moved when Draco could see them, at least the visuals were fully rendered.
An elaborate dinner party had been set up in front of the castle, and quite a few Hogwarts students were there.
Harry was utterly astonished.
He discovered that not only was he there, but quite a few students from other houses had come too. Even Gryffindor students were present.
What was going on?
Harry could not understand it.
According to the limited knowledge of dreams he had acquired during his mere one term of Divination, unless they were nightmares or strange dreams, the scenes in ordinary dreams were generally what the dreamer wished for.
*So Draco actually wanted to have fun