What is the dark place under the earth before Hades?

The dark place under the earth before Hades is often referred to as the Underworld or Sheol in ancient mythology. It is depicted as a shadowy realm where souls reside after death, often seen as a place of waiting rather than punishment. In Greek mythology, it serves as the precursor to Hades, which is more specifically associated with the afterlife and the domain of the dead. This Underworld is characterized by gloom and is inhabited by spirits who have departed from the living world.