From Zelda Legends Wiki
A wise man who is hiding in a cave in the Desert of Mystery.
DescriptionDesert of Mystery. He knows about a prophecy of the Book of Mudora, and actually hints you where to find it. That is actually his entire role in A Link to the Past.
How can a man spend his entire living in a dark cave without food? Some may ask, but no one can answer.
On your first meeting he’ll say:
I am Aginah. I sense something is happening in the Golden Land the seven wise men sealed...
This must be an omen of the Great Cataclysm foretold by the people of Hylian blood...
... ... ... The prophecy says, "The Hero will stand in the desert holding
the Book Of Mudora." If you have the Book Of Mudora you can read the language of
the Hylia People. It should be in the house of books in the village...
You must get it! If you are the person who will be The Hero...
After retrieving the Book of Mudora:
Aha! It is the Book Of Mudora. With it, you can read the language of the Hylia people.
After finishing the second dungeon:
Your trial in the desert has made you stronger. The blood of the Hero must be in your
Talk to him when you have all three pendants, but before you get the Master Sword:
You have collected the three Pendants. If you are indeed the Hero who
has Wisdom, Courage and Power, the Master Sword sleeping in the forest will be yours.
The Japanese version アジナー transliterates to "AJINÂ." The "j" is soft, unlike the implied hard "g" in "Aginah." In all other languages he is always called Aginah. At least in the GBA version of the game.
Japanese name information obtained from the Quote FAQ written by: KWhazit and davogones.