You want it? Then go take it

Alex appeared in a large circular room. In this room which was round in shape and was enormous in size could be seen about thirty large golden doors.

"Temple-spirit, what's this place?" Alex asked.

"This is my master's treasure vault. The doors you see are doors to rooms filled with certain types and amounts of treasures" The temple-spirit nodded.

"Nice." Alex said. Then he asked "Are they open? Can I go in to see them?"

"No, you can't. Well, since you are in the half-step, earth adept stage, I can unlock the door to the room containing earth-rank treasures."

"Thank you" Alex said with a smile.

Then a door opened and Alex walked into it.