I was just browsing images on Google, oddly enough, and I came across an image that made me think of an underlying meaning for the way the chakra balance system was portrayed.
Wind strengthens Fire.
The Wind Country supports the Fire Country.
Suna & Konoha.
Gaara & Naruto.
Is it a hidden omen of things to come, or just a happy coincidence?
I haven't had time to flesh out a theory from this or anything, I just like this idea of the two countries having such close ties.