High Priest Sylvain:
Oh! You need to ask again because you're not used to the Material Realm yet.
I heard that there are ways to see the ancient giants in Cruma Tower. You may ask the ones there to obtain useful information. I hope you learn information that is helpful for the Ertheia.
First go to Cruma Tower and find Researcher Lorain near the entrance.
You won't find a better helper.