Is Haki based on anything real?


In One Piece series, there's this 'will' technique called Haki. Is this based
on anything real, all three of them?




_I am not entirely sure about the credibility of this_ but it does make sense
and the only info I could find. Taken from the
[wiki](http://onepiece.wikia.com/wiki/Haki) under Trivia and from this
[answer](https://anime.stackexchange.com/a/2783/1528)

>   * Haki appears to be similar in principle to common types of **Qi**
> _(Chi)_ found in various other anime and manga series; which is based on the
> concept of "qi" (or "life-force") in Chinese philosophy.
>
>   * The concept of Kenbunshoku Haki, known to Skypieans as Mantra, is
> loosely based on the style of thinking in Hinduism, which goes by the same
> [name](http://en.wikipedia.org/wiki/Mantra).
>
>

The original Japanese term is ki (pronounced the same as "key", written as 気).
It can also be spelled chi or qi. The same term is used for a concept in
martial arts.




_I am not entirely sure about the credibility of this_ but it does make sense
and the only info I could find. Taken from the
[wiki](http://onepiece.wikia.com/wiki/Haki) under Trivia and from this
[answer](https://anime.stackexchange.com/a/2783/1528)

>   * Haki appears to be similar in principle to common types of **Qi**
> _(Chi)_ found in various other anime and manga series; which is based on the
> concept of "qi" (or "life-force") in Chinese philosophy.
>
>   * The concept of Kenbunshoku Haki, known to Skypieans as Mantra, is
> loosely based on the style of thinking in Hinduism, which goes by the same
> [name](http://en.wikipedia.org/wiki/Mantra).
>
>

The original Japanese term is ki (pronounced the same as "key", written as 気).
It can also be spelled chi or qi. The same term is used for a concept in
martial arts.

