"Ori, this is a Map Stone, one of the many ancient markers created to chart the forest of Nibel as it grew."—Sein to Ori, upon encountering a Map Stone
Map stones are stones scattered throughout all of Nibel. They were used to chart Nibel, but each has since lost a piece, rendering them nearly useless. By gathering the missing pieces, Ori can restore the map, gaining the ability to see areas in which the player has not been.