Spiritual Stone

The three Spiritual Stones are three stones which are all necessary in addition to the Ocarina of Time to open the Door of Time which leads to the inner sanctuary of the Temple of Time, where the Master Sword was hidden around the time of Link's adventures in Ocarina of Time.

The three stones were the Kokiri Emerald (Spritual Stone of the Forest), held by the Great Deku Tree, the Goron's Ruby (Spritual Stone of Fire), a treasure held by the Darunia, and the Zora's Sapphire (Spritual Stone of Water), which was held by Princess Ruto.