The Ancient Egyptians believed every person was made up of five elements
| Akh | The form the dead had in the Underworld.It was the result of the reunion of the Ka and the Ba. |
| Ka | The creative life force, it continued to live even after death |
| Ba | Personality |
| Name | The name of an individual was considered important for survival |
| Shadow | It was necessary to protect the shadow from all harm |
It was believed that migratory birds were incarnations of the Ba. The Egyptians believes these birds could fly freely between the Underworld and the tomb.
The physical body of the dead had to be reunited with the Ba in order to survive in the Underworld. For this reason many coffins were decorated with figures of birds.
Rivers of the Underworld
In Greek mythology there were five rivers of the Underworld, Hades.
| Acheron | The river of pain |
| Cacytus | The river of wailing |
| Phlegethon | The river of fire |
| Lethe | The river of forgetfulness |
| Styx | The river of hate |
The Fifth Sun
The Aztec people believed they lived in the age of the Fifth Sun. In the center of their calendar stone is the image of the sun god named Tonatiuh.
He was also known as “the Fifth Sun”.
He is surrounded by symbols of the four previous suns/ages of the world. Tonatiuh required human sacrifice to ensure he would be reborn every morning.