The Spider

Hint: What am I supposed to do here?

Nested hint: What can I do in the metal realm?
(sorry, cannot decode section)
Hint: What do I do in the air realm?

Hint: What do I do in the fire realm?

Subject: Oil Realm

Hint: What do I do once I've finished a realm?

Hint: I've finished all four realms. What's next?