Those damn blue crystals

Ok, so I have 2 computers, 1 that I actually use and the other to piddle on. Well ever since I discovered the live FF cam about a week ago the secondary computer has done nothing but play that 24 hour as a day (did I mention I was obsessed?).

So yeah, to the question. After watching the camera for about 10 hours or so (not all at once, mainly just glances and good hard watch every once in a while when something cool is happening) I realized that the camera basically repeats areas in order taking the same pathing. Well anyways,(I take a long time to get to the point) I see the blue sparkling crystals both in towns and in the wilderness. Can someone please tell me what these are and what their purpose is? Thanks =)

Leighton

They're like save points (without the saving), or "bookmarks". When you die you head back to the last crystal you touched or something like that.

good to know that before i die I guess. :D :p