Once you have earned enough Honor with your current Faction, you can accept a Flameagle Order from your Faction Herald in Sunstream City
These quests reward a large amount of experience. You will only be able to get the Flameagle Order from your current faction.
If you donate to a different faction, you will not be able to receive the Flameagle Order from them.
As your honor increases, you will be able to complete higher ranks of the Flameagle Order, and receive greater amounts of Taichi Pills. There are ten levels to the Flameagle Order.
When completing Flameagle Order, there is a small chance you will receive a Mysterious Chest (http://jd.pwdatabase.com/pwi/item/40191).
All items drop from the Shura Celestial Vanguards
(https://puu.sh/BeIv8/dcac0e7fd0.png)