In this story, there are several types of stone which have special powers. Dream Stone is one of those.
It has various complicated connections to the dream plane on Terran 8
several important structures are built of this, including the Temple of D'zeron , the Well of Morning , and the 5 pillars of D'zeron
other stones with special powers;[]
this substance is found on the planet Beta Blue , later known as Hell Colony . It can be used for mind control.
Living stone .
found on the planet HomeWorld , and used in their shapeshifting technologies, especially in the bodies of the shapeshifting creatures called the Unchosen .
unintentionally, it seems the 3 types of stone correspond with the 3 mainifestatons of the dreaming power: dreaming [dreamstone] empathy/ telepathy [bluestone] shapeshifting [living stone]