Goddess to Goddesses?

[LinkandZelda<3]

I have a serious question, and you will think i am an idiot, maybe.
In Skyward Sword, there is one goddes and one goddes only-- Hylia.
But, in the very next game in the timeline, Ocarina of Time, there are three goddesses-- Din, Nayru, Farore.
Anyone want to explain this to me?

 

[JuicieJ]

The three goddesses are the "old gods" mentioned in the ink blot opening of Skyward Sword. They're names are even mentioned in the Sky Keep. Hylia was just a goddess that served them and guarded the Triforce. Hope that helps!