One of the Orbs of the Prophets, taken during the occupation and later acquired by Grand Nagus Zek, who used it to contact the wormhole aliens in Prophet Motive.
The Orb of Wisdom was among the Orbs carried off by the Cardassians. In the Deep Space Nine episode Prophet Motive, Grand Nagus Zek has bought it, hoping that beings who exist outside time will tell him the future and make him richer still.
The Prophets, finding his greed distasteful, instead return him to an earlier, gentler state of Ferengi development. Zek arrives on the station a changed man, giving away his wealth and presenting Quark with a rewritten set of the Rules of Acquisition that preach generosity.
Quark, horrified, uses the Orb to enter the wormhole himself. The Prophets consider altering him too, but he talks them into restoring the Nagus by pointing out that otherwise more curious Ferengi will keep coming to bother them.