As they walk into the entrance hall, they will see it is a square room made out of large tiles, vines growing in-between them on the walls.

In the middle of the room, there are four round pedestals, and in front of them, a large stone slab with a screen embedded into it. On it reads the following:

One brightly flares,
one blithely grows,
one a bud carries,
one long it flows.

Four keys you need,
so these clues must you heed.

What will they do?