>>713259346 (OP)The game is about exploring uncharted areas and drawing the map is necessary in order to not get lost. You need to mark things like walls, doors, chests, navigational things like platforms, and so on. The series started on DS and this was a way to utilize the stylus and second screen. It adds to sense of immersion and players usually develop their own ways of mapping certain things. It also calls back to old dungeon crawlers like Wizardry and drawing a map on paper. Map drawing is only one among many other elements that makes this series so good however. Auto mapping exists for people that don't want to draw it themselves.