First, the central pedestal. Upon touching the glass, the light from the Emperor statue faded momentarily as the center orb took on a smidgen of a little light within, not nearly as bright. The orb on the door flickered a similar wilting luster before they both faded and the Emperor reignited to a full glow.

Second, the Emperor. As Aika stumbled upon earlier, touching this orb seemed to all six of the statue orbs to switch their lit and dim states.

Third, the Acolyte. Each time you touched this orb, it would change its own state, and the Emperor would then match this new state.

Fourth, the Knight. If and only if the Scoundrel was alight, touching the Knight would snuff out the Scoundrel and alight the Emperor, otherwise this orb seemed to do nothing.

Fifth, the Scoundrel. Touching this orb if and only if it is dark and the Emperor and Acolyte are both alight would cause all three to switch states.

Sixth, the Fool. Frustratingly, every time you tried to use this orb, any one of the six statue orbs would instead change its state at random.

Lastly, the Hermit. This orb only changed its own state when touched.