Some of them include, that he was master of the dreams sent by the ghosts of the dead, even the Furies answered to him, he laid down the law to how a ghost of the dead is judged.
He received the dead guided to the Underworld by Hermes and ferried them accross the Akheron (or Styx). His mother was Nyx (Night); his father Erebus (Darkness). The fee for his service was a single...
For the dead, he established the law of judging the ghosts of the dead. For Heracles, in retrieving Cerberus from the Underworld and allowed him to take Theseus and Alcestis back to the earth with...