I think there are a few similarities between Heaven and the Underworld. One of my thoughts are that they both are connected to the Afterlife when someone dies.The Underworld and Heaven both have a Judgement Hall for when someone dies and is going to relive their life. When a person dies, they have a funeral, and that is another similarity between the two worlds. People also believe in hell when they go to the Underworld and Heaven and that is not a place anyone wants to go.
To me, there are more differences though, than similarities. some of them are; that Heaven is a place for the saved only, only one GOD, angels, and no sin. The Underworld is a place for the sinners, multiple gods, and you can have sin.




