If you kick the item while it's on the ground (or try pulling it with Telekinetic Kick perk), it will vanish, and a beam of light will appear in its place. Along with it, a message: You feel like you should move...
This beam will charge up for a few seconds, before exploding, dealing 375 damage to any creature unfortunate enough to be inside. Additionally, all solids above the beam, even unloaded ones, will be removed in a wavy pattern.
If any spells within Holy Mountain shops are in the range of the beam, they will drop down to the point of origin, including spells with a price tag on them (this will also make them free).
It makes for a great tool to get back to the surface.