Light Medallion

The Light Medallion is one of the six medallions with the power of the Seven Sages in The Legend of Zelda: Ocarina of Time's era, used to help the sages succeed in trapping the evil King Ganondorf into the Sacred Realm. After the three Spiritual Stones were collected from their corresponding dungeons and the Ocarina of Time was given to Link, he could access the Sacred Realm through the Door of Time. The Door of Time was located inside the Temple of Light, on the outskirts of Hyrule Town. Doing so though, he ended up getting shut inside, frozen in time for seven years. When he was awakened, Rauru, the Sage of Light, granted this medallion too him, and sent Link out on his quest.