Board Thread:General Discussion/@comment-26579022-20161015161855/@comment-25936766-20161107121907

147.226.224.72 wrote: Thats not how aura seems to work. Aura protects from all damage until it's spent. Period, like the shields from halo. concentration doesn't matter, just total energy. To what point are you refering to? You explain how it seems to work.....and I never said it didn't work like that.

All I said: like the shield from Halo, it covers your body and protects you. Now, what if something was no longer a part of your body, like Yang's arm? It wouldn't be protected anymore, maybe for just a few seconds after dismemberment at most.

Now, if you refer to the point of "she would last more since her Aura would be more concentrated", that's just how it logically is. If there's a bigger volume, Aura needs to expand more to cover it entirely. But without the arm, the volume decreases and the Aura doesn't need to expand as much, meaning it stays slightly more concentrated, and protects more effectively.

Concentrating one's Aura at will to block more effectively, (if we assume that's what Ren did against the Taijitu and/or what Cinder and Amber did to block bullets) could probably be a somewhat-more advanced technique, something not easily done.