"According to the bible, Heaven is completely perfect and Hell is completely evil. In Heaven, in order to keep everything completely perfect, everyone in it would have to follow a long, specific set of rules for it to be perfect. Heaven is prison. In Hell, everyone is already evil there, so no rules need to be set to make it completely evil. Hell is freedom."

Source: William Cartwright, “To Chloe,Who For His Sake Wished Herself Younger”