Original: The Avatar possesses a unique power and ability called the Avatar State , which endows the Avatar with all the knowledge and abilities of all past Avatars and acts as a self-triggering defense mechanism , although it can be made subject to the will of the user through various methods , such as extensive trial and training .
Simplified: The Avatar possesses a unique power called the Avatar State , which endows the Avatar with the knowledge and abilities of all past lifes and acts as a self-triggering defense mechanism , although it can be made subject to the will of the user through various methods , such as extensive trial and training .