Ack! Where do I go now? (FF 3)

[KoShiatar]

Ok, I just killed Hyne and I have the Airship. But where do I go with it?
I tried to fly off the Floating Continent. I found:
-a sort of crystal on which you cannot land.
-The Temple of Water. But I need Elia.
-Elia sick in bed and a sort of dwarf tending her. But nothing happens when I talk to her.

Is there any other land on that horribly large sea map? How do I take Elia with me? This game is great, but it's driving me nuts and bananas!!!

[Kawaii Ryûkishi]

One of the gameplay elements that FFIII introduced but didn't last in the long run was the ability to use items in the field--either to unlock doors, remove barriers, or just hand stuff over to NPCs. What you need to do is give Elia a Potion.

[KoShiatar]

I knew you'd come to the rescue. We love you, Kishi! Thank you.

By the way...*slaps herself in the head* I should have though of it. Even though they usually give you hints when you should use an object....