After playing the second quest in the Sorrowdusk Isle chain, you hear the dungeon master name drop something about the "Kalashtar." Who are these guys in Eberron lore? What do they have to do with Monks? What connection do the Kalashtar have with the Quori?
Heck, do you even know who the Quori are, as seen in the game? It's a storyline that's worth exploring.
If you like layers within layers, then read on about the Quori, the denizens of the Inspired Quarter, and their goals for Stormreach and beyond.