Beacon

Beacons are a recurring feature in the Legend of Zelda series. They are indicators that can be placed on the map to assist Link with navigation. When placed on the map they will appear as a pillar of light in overworld, indicating which direction Link should be heading to get to the desired area.

Skyward Sword
Link first learns of Beacons from the Old Woman in the Sealed Grounds. Initially he can only place on Beacon on the map at a time but after reaching the Lanayru Mining Facility, Fi allows him to place up to five on the map at once.

When in the Silent Realm, Link can collect Light Fruit which causes all remaining Sacred Tears to emit Beacons, indicating where they are.

The Legend of Zelda (Wii U)
Beacons return as a feature to allow Link to easily navigate the huge overworld.