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|Purpose||Physically released Reiryoku|
|Users||Shinigami, Arrancar, Quincy, Bount|
Reiatsu (霊圧, Spiritual Pressure; ; ; ) is the physical force/pressure that a person’s Reiryoku creates when released. Most Shinigami and Arrancar, even Quincy and Bounts can manipulate the release of their Reiatsu.
Reiatsu VS ReiryokuEdit
The difference between spiritual pressure and spiritual energy is simple: Reiryoku is the amount of energy a being has stored within their body or soul, whereas Reiatsu is the pressure that a person’s Reiryoku exerts. The difference is much like energy and power. Power being the amount of energy exerted per unit of time. Reiryoku is potential while Reiatsu is energy in use. In general, those with high levels of Reiryoku will often have the highest levels of Reiatsu also. A skilled warrior can overcome a person possessing greater Spirit Energy by possessing greater Spiritual Pressure. This is done by having greater control over their own spirit energy.
Different spirits have different colors of Reiatsu, and it does not depend on the character's race or power; instead, the color is determined by the owner’s personality.
Some particular characters have a shape or manifestation of their energy whenever they release enough of it. The manifestations are one of the characters inner strength/energy.
|Ichigo Kurosaki||Blue Spiritual energy in the shape of his Hollow mask.|
|Kenpachi Zaraki||Golden Spiritual energy in the shape of a giant menacing skull.|
|Yachiru Kusajishi||Pink Spiritual energy in the shape of an angry cat.|
|When two spiritual beings collide, the side with weaker spiritual pressure will get hurt. (Ex: When Ichigo Kurosaki fights Captain Kenpachi Zaraki, the captain opened up the chest area of his shihakushō, and ordered Ichigo to cut him. When attacking with all his strength, Ichigo found Kenpachi uninjured, while his own hands were bleeding. As his sword that is highly concentrated for the purpose of killing, the spiritual pressure that Kenpachi subconsciously releases is much, much stronger). In this way a Shinigami with a greater amount of Reiatsu can use their own Reiatsu to harden their skin, and effectively protect themselves from attacks. Shinigami battles are battles of Reiatsu, if one possess a greater level Reiatsu then the other can be overcome completely.|
|Reiatsu at its most basic level can instill fear in others when it is very high (in comparison to the one feeling it). Willpower is the simplest way to fight this effect.||
|High level of spiritual power can cause those of lower power to be stunned by simply being in the presence of a high level spiritual being.||
|When a Spiritual being of high Reiatsu chooses to they can paralyze an opponent just by focusing pressure through their stare or presence.||
|High level of spiritual pressure can make an opponent feel as though they are being attacked though nothing is physically happening to them.||
|In high enough quantities, spiritual pressure can be lethal to others.||
Types of ReiatsuEdit
Most characters have this form of Reiatsu, which have no other effect than those described above, along with its unique color and feeling. Most Hollows and Shinigami have this type, while every Quincy and Humans always have this type. Fullbringers are the only Humans shown to have Hollow-like powers. Yasutora Sado noticed he felt 'more at home' in Hueco Mundo, and his Reiatsu feels like a Hollow despite his species; it is still a standard type.
All Visored and Arrancar have this specific Reiatsu. For Visored, they feel more like Shinigami, while Arrancar feel more like Hollows. When Ichigo's inner Hollow started to take over Orihime Inoue could sense it, becoming afraid of how heavy and dark it was. The Visored, strangely enough, also feel more like Hollows when they release their powers. Arrancar seal their Hollow abilities, meaning they become as close to their original form as can be, explaining this phenomenon.
Three characters have been shown using elemental Reiatsu, even without releasing their Zanpakutō, or it being their natural Spiritual Power:
Fire & Heat: Genryūsai Shigekuni Yamamoto. Captain Yamamoto has used his burning spiritual pressure to heat up his sealed Zanpakutō, causing it to glow dark orange like a recently forged sword. He has also displayed a large amount of flames emanating from his body before his Shikai, which is needed for his fire based techniques.
Ice & Cold: Rukia Kuchiki & Tōshirō Hitsugaya. When Tōshirō was a child, he had trouble controlling his power. In his sleep, it would go out of control, affecting his grandma and causing her to shrink because of the sheer cold. This cold power caused others to fear him.