"In Heaven over time you become an angel, a Lawful being with the Good in your nature amplified and strengthened. You can go to Heaven and refuse to become an angel but it is not common, and everyone you know will leave you behind. In Hell when you are ready for the trials you will face you become a devil, a Lawful being with the Evil in your nature amplified and strengthened. It is more common for people to go to Hell but refuse to become devils: those who go to Heaven generally aspire to become angels to do the work of angels in the universe, but people only become devils for themselves.
Axis is a city of a hundred thousand smaller cities, and too many things go on there to name, and the Lawful outsiders of Axis are designed by a process the Material plane is not permitted to know. It is the afterlife that is most like living.