Significance of Aang's left eye and hand lighting up


According to the Avatar series, the solar eclipse is when the Fire Nation was
at its weakest. Why do Aang's left hand and eye light up? I don't believe he
is left handed, so what is the significance?

[![Aang during the solar
eclipse](https://i.stack.imgur.com/bsm90.jpg)](https://i.stack.imgur.com/bsm90.jpg)

[![enter image description
here](https://i.stack.imgur.com/mFTlZ.jpg)](https://i.stack.imgur.com/mFTlZ.jpg)




_I haven't evidence for this answer_ however, I think that it's for illustrate
both _states_ of the Avatar Aang:

  * Aang as a _human_
  * Aang in it's Avatar state.

