Powers & Abilities About Ki

[D. Plant]

Just putting out here to let you guys know.

Oda stated that if a human ate Chopper's human DF, he will just increase in Seiki.
Maki and Seiki are the complete opposite of each other. (魔气 = Maki, 正气 = Seiki)
That's why Chopper can turn Domi Reversi'd giants back to normal.

There are also another two type of ki, Senki and Yaoki (仙气 = Senki, 妖气 = Yaoki). Senki means God/celestial/immortal ki while Yaoki means demonic ki. These two have no relation with Maki and Seiki, but the operate in similar fashion. I don't know if Oda is going to introduce these two ki in the series. But as we are seeing more Gods and Demons in the series, there might be a chance we will see them. Just a food for thought.

 

[Cruxroux]

I don't about Seiki.

But My theory wasn't for chopper, rather Sanji, Garp, Kuma type of characters.

Haki = Will
Maki = Domination
Whatever~ki = Passion

Luffy represents Haki,
Zoro represents Maki, with Ashura
Sanji represents Power of love, His fire are result of his passion ig it was stated somewhere I don't remember.

 

[D. Plant]

I don't about Seiki.

But My theory wasn't for chopper, rather Sanji, Garp, Kuma type of characters.

Haki = Will
Maki = Domination
Whatever~ki = Passion

Luffy represents Haki,
Zoro represents Maki, with Ashura
Sanji represents Power of love, His fire are result of his passion ig it was stated somewhere I don't remember.

Seiki is about spiritual upright essence of a living being, it is always said to be the good side of an individual person, it's a term from Taoism. If a person's Seiki is low, he will likely leans towards/attracted/entering to the bad side like Maki.