This is a series of philosophical oneshots. That being said, I have no idea when I will be updating, because I write when the ideas come. Also, don't expect romance.

Disclaimer: I don't know Avatar: The Last Airbender

Things you think are separate and different are actually one and the same.

Zuko and Katara are not as different as you might think.

The differences are clear enough: Zuko is the exiled prince, the firebending failure. Katara is the lowly peasant, the waterbending master. Fire and Water. Yin and Yang.

Katara is Yin, the darker, passive, femmine side of the Taijitu. Zuko is Yang, the lighter, active, masculine side of the Taijitu. But inside Yin is Yang, and inside Yang is Yin. One cannot exist without the other, because they are complements, not opposites.

Both have pride, and both are ready to fly off the handle at a moment's notice. Both use force in their bending; Katara uses more force than traditional waterbender requires.

Everything in this world is both yin and yang, and what seems yin to one can seem like yang to another. Few understand this, that things can be separate and different while also being one and the same.

Things you think are separate and different are actually one and the same.

But what Guru Pathink does not realize is this:

What works one way will also work in reverse.

Things you think are one and the same can also be separate and different, and none emphasizes this as much as the Avatar cycle.

Aang is not Roku, just as Roku is not Kyoshi. Aang may be the reincarnation of Roku, but he is not Roku. Different lives, different personalities. The same, but different. One, but separate.

Fire and Wind are classified as yang, while Water and Earth are yin. But Fire and Earth are 'hard' bending styles, with more emphasize on force, while Wind and Water are 'soft' styles, with more emphasize on moving with the opponent. The elements are one, but different and separate.

Four nations, but one world. One world, but four nations. Four elements, one Avatar. One Avatar, four elements. In another world, another time, another place, people came up with a name for this concept: All is one and one is all.

Aang doesn't understand this. He may never. However, Roku isn't actually concerned, because he knew it in a past life, and that's all that matters. What once was will come again.

Everything is connected, and everything is separate. Everything is yin, and everything is yang.

And that is Truth.