It seems that because he holds the torch, it is encapsulated in the barrier ... what he holds and carries is a part of him, and the barrier extends several inches past him, and what he holds, in all directions ... but that still isn't a tremendous amount, as no doubt again the torch will befoul and overheat the air within the barrier in short order. Kaen realizes at this point that he cannot make the barrier in such as way that he can attack beyond its borders .... he is protected, but he likewise is immobile and inoffensive.

Kaen, what now?