It's a strange system Bungie has put in place for worldbuilding. You collect Grimoire cards that fill in info on what's going on or info about your enemies or just background history stuff but there is no way to look at them in game. You have to go to Bungie's website and login there to see them. Seems like a needless step. I still haven't gone to see them, even though I'm sure I'd enjoy reading them. I'm sure that's true for the majority of players 




