Haki as stated by Rayleigh is an spirit energy of sorts found in all living things.
This energy is manifested for combat purposes through willpower hence the name itself, "Haki" meaning ambition.
We can say that improvement in haki can be attributed to Mental state, such as Luffy and Zoro awakening haki in times of distress pre time skip or training in the use of specific haki such as was the point of the time skip.
What we shall investigate is the other way of improving haki that's been implied from the start, and that is actual physical training of one's body to increase ones STAMINA.
This has been implied in more obvious ways such as Luffy and company undergoing physical training when improving their haki durig the time skip. This has also come up as one of the reasons Luffy is left lacking in Stamina when he reaches his limit in Gear fourth. Gear fourth having been stated to consume too much haki by Rayleigh, Doflamingo and Hyogoro.
The instance when Haki being connected to stamina was basically outright stated as a fact is when Luffy says he can't use Haki because of the sea prism stone cuffs he has on. This is confirmation to a degree since the only effect ever stated sea prism has on devil fruit users is draining their stamina and Luffy's words essentially correlate draining stamina to inability to use haki.
Therefore as it stands, since physical stamina is required to use haki, physical training to improve stamina also improves haki usage.
With this conclusion set, what we need to investigate is what the actual relationship between Stamina and haki is.
First we can say the reason these two are even connected to begin with is the initial definition of haki. Haki dwells within living things and Stamina/vitality are associated with life itself and at times are substituted as Life energy in stories.
The second thing we could look at is a disparity between the two. Giants like Harjudin could be considered to have more stamina than a regular human such as Zoro given their body sizes and yet Zoro could be considered to have more Haki given his combat achievements with Haki. This therefore means more stamina doesn't indicate more haki and vice versa at least from one individual to another. This is likely due to the other factors that improve haki I mentioned before such as mental state and training in haki itself.
Lastly we can conclude that usage of Haki drains stamina which is built up by physical training but the rate of usage of this haki requires training in haki to begin with and the actual amount used at a time is regulated by ones mental state such as how strong ones will to win is.
Concurrently, physical training to improve one's base Stamina is always a good thing but training to improve one's stamina RECOVERY is also a viable alternative. Since the point is to have stamina, having a lot of base stamina or having high recovery of stamina both achieve similar effects with regards to use of Haki and better yet having both is the most ideal.
This energy is manifested for combat purposes through willpower hence the name itself, "Haki" meaning ambition.
We can say that improvement in haki can be attributed to Mental state, such as Luffy and Zoro awakening haki in times of distress pre time skip or training in the use of specific haki such as was the point of the time skip.
What we shall investigate is the other way of improving haki that's been implied from the start, and that is actual physical training of one's body to increase ones STAMINA.
This has been implied in more obvious ways such as Luffy and company undergoing physical training when improving their haki durig the time skip. This has also come up as one of the reasons Luffy is left lacking in Stamina when he reaches his limit in Gear fourth. Gear fourth having been stated to consume too much haki by Rayleigh, Doflamingo and Hyogoro.
The instance when Haki being connected to stamina was basically outright stated as a fact is when Luffy says he can't use Haki because of the sea prism stone cuffs he has on. This is confirmation to a degree since the only effect ever stated sea prism has on devil fruit users is draining their stamina and Luffy's words essentially correlate draining stamina to inability to use haki.
Therefore as it stands, since physical stamina is required to use haki, physical training to improve stamina also improves haki usage.
With this conclusion set, what we need to investigate is what the actual relationship between Stamina and haki is.
First we can say the reason these two are even connected to begin with is the initial definition of haki. Haki dwells within living things and Stamina/vitality are associated with life itself and at times are substituted as Life energy in stories.
The second thing we could look at is a disparity between the two. Giants like Harjudin could be considered to have more stamina than a regular human such as Zoro given their body sizes and yet Zoro could be considered to have more Haki given his combat achievements with Haki. This therefore means more stamina doesn't indicate more haki and vice versa at least from one individual to another. This is likely due to the other factors that improve haki I mentioned before such as mental state and training in haki itself.
Lastly we can conclude that usage of Haki drains stamina which is built up by physical training but the rate of usage of this haki requires training in haki to begin with and the actual amount used at a time is regulated by ones mental state such as how strong ones will to win is.
Concurrently, physical training to improve one's base Stamina is always a good thing but training to improve one's stamina RECOVERY is also a viable alternative. Since the point is to have stamina, having a lot of base stamina or having high recovery of stamina both achieve similar effects with regards to use of Haki and better yet having both is the most ideal.