they're from quests that are in your inventory and can be viewed on the map, it will show "light aspect" or "dark" and it's a multi-step quest to unlock all of them
@@scofozo go to The Impasse and get memory fragments after you get 5 it will show you a waypoint on your map go to the right of the monolith like building and head to the edge look down and a chest should be there you need the memory key thing to open it and get facet of honor get another 5 memory fragments and you will get another spot to go to