What do I do in the main room?

Hint 1 of 12:

Listen to the Wise Old Man after you first enter.

Hint 2 of 12:

Note his focus on the door through which you just entered.

Hint 3 of 12:

Look around the main cave.

Hint 4 of 12:

Can you go back the way you came?

Hint 5 of 12:

Can you go forward to the statue?

Hint 6 of 12:

How many doors does that leave?

Hint 7 of 12:

Each of the remaining six doors leads to one of the six main caves.

Hint 8 of 12:

Each cave contains two puzzles.

Hint 9 of 12:

You must solve the first puzzle in any cave before you can gain access to the
second puzzle in that cave.

Hint 10 of 12:

You do not need to solve all six first-level puzzles before beginning a
second-level puzzle.

Hint 11 of 12:

The order in which you enter the caves is not important.