Fairy Fountain

There are two types of Fairy fountains: Ones that give you new attacks or items, and ones which contain Fairies' Spirits, which revive Link when he is fatigued. In Ocarina of Time, Link learns three spells from the Great Fairies. Those spells are Din's Fire, Farore's Wind and Nayru's Love.

In Majora's Mask, Link must find the lost fairies in the dungeon, with the help of the Great Fairy Mask, to rebuild one of the fairies to give Link new power-ups. The song for the Fairy Mountain in Majora's Mask can be found here.

In Wind Waker, the fairies give Link larger containers for his weapons, like larger quivers and Bomb Bags.