Talk:Energybending/@comment-72.209.197.70-20120421165341/@comment-173.68.57.180-20120423052438

Think of it like this. They never intended a second series, so they ended it bright and flashy (not to mention they apparently had this idea for a long time and it would have been pretty boring if they just ended it without anything visibly happening). People wanted a sequel, so they made it and now they want to incorporate this idea into the new plot. It wasn't intended to be reused, but since it is, they have to make some minor changes.

Also, the light show's secondary purpose (besides looking awesome) was to demonstrate the need for true heart and mind to triumph over evil. Aang almost lost the struggle, but won at the last second. You can't really show that without some kind of color coded lights.