Back to the Mirror

[meriaugust]

No: HPFGUIDX 88112

I have just reread my HP collection, and have been wondering some 
things about the Mirror of Erised in SS. We know that the mirror 
reflects the viewer's heart's true desire, and for Harry (when he 
first encounters it, anyway) his heart's true desire is to see his 
long lost family, including his mother and father. When he sees 
them, though, he doesn't just see a simple reflection, he sees his 
mother is crying, presumably at her longing to be with him. Why is 
that? Do the figures inside the mirror have some sentient existence 
like the spell shadows that come out of LV's wand in GoF? Is there a 
way, perhaps, for Harry to communicate with them through the mirror? 
Could Sirius be there now, too? Will the mirror be back in the 
future? Or will Harry's deepest desire be something different now, 
like being a whole other person? Thoughts? 
Meri