How can I talk to the Phoenix?

Hint 1 of 9:

Show him humility and honor, as advised by the priest and priestess you met
outside.

Hint 2 of 9:

Talk to the High Priest.

Hint 3 of 9:

Kneel.

Hint 4 of 9:

You must "commune" with the Phoenix.

Hint 5 of 9:

Have you looked at the scroll you picked up on Glitter?