“Hades is a place with a certain structure.   One finds himself higher or lower within Hades, depending upon the extent of evil he has done.  Before the Lord entered into Hades, there was a special section for the righteous.  It was separated from the rest of Hades by a certain chasm, but nonetheless it remained in Hades.  It was referred to as the Bosom of Abraham… for what did our Lord Jesus Christ do when He descended into Hades?  He freed all of the righteous.”
(Martyr Daniel Sysoyev ‘Instructions to Immortals’)