The cave has closed. What's going on here?

Hint 1 of 8:

You need to get out of the repository.

Hint 2 of 8:

Breaking the mirror doesn't work.

Hint 3 of 8:

There's one kind of object here you haven't seen before.

Hint 4 of 8:

The rods with red marks (not stars) are actually dynamite.

Hint 5 of 8:

Blow up the northeast area.

Hint 6 of 8:

Drop one of the red-mark rods in the northeast area, then go southwest, then
'blast'.