Orb Of Pondering

This flawless sphere of midnight crystal is approximately six inches in diameter and weighs almost nothing. A lattice of silver rings holds it aloft, though the rings rotate slowly even when the orb is untouched. Within the crystal drift pinpricks of starlight, fragments of written equations, and fleeting images of people, places, and events that may never occur. When held, the orb becomes cool and perfectly still, as if listening to the thoughts of its bearer.