Cubic Steps

Overview

As you enter the puzzle, you find two hexahedrons, and another one behind a blue door. There is a pressure plate in front of the blue door, and a sigil is at a higher level.

Hints

A basic hint:

[ hint ]

as the name of the puzzle suggests, you have to put boxes on top of boxes.

If you can't find the right location:

[ hint ]

Make sure you look around the puzzle area, use any corner you can.