The Exalted Soul
From Exalted - Unofficial Wiki
Warning: This is still an incomplete idea, it will become more clear as I have more time to write.
The human soul is a unique thing in Exalted, in that it has two parts, the Hun (the higher soul) and the Po (the lower soul). It is the dinamic between these two souls that makes humans in exalted so special. Most creatures in exalted onlt have one soul (gods, elementals, deamons, raksha, jade-born, dragon-kings, and animals). It is my belief that it is the relationship between these two souls that allows humanity to become something more then what they are.