Focus on the wires on the top and tilt your device to light up both stars. The handle fits into another spot on top of the table, hidden under a flap. Equip the eyepiece and look at the wooden wall. Adjust your view and the dial to form the familiar shape.
The dagger goes into the center of the table. Alternate between the square puzzle (hit the rectangle on the bottom to try your solutions) and pressing the button on the dial. When the wooden wall pops up again, adjust until you view the shape.
Place the amulet on the tabletop and solve the squares puzzle again. Get the energy source and stop the dial with a button press. Equip the eyepiece and view the wooden wall. Focus on the wooden walls and rotate the panels. Place the null element.