Bri is a Fox Ninja word that literally means "power of the soul". Breathing, running, thinking - all acts, voluntary and involuntary require and expend Bri. Essentially, it is a being's life-force.
Although every living creature possesses it, most are unaware of Bri's potential or even its existence. The 3 Fox Ninja Clans are an exception. Through years of training, fox shinobi are able to bring Bri to a tangible, and in many cases, very potent, level. They manipulate their Bri to enhance their combat and reconnaissance abilities. Basic Bri techniques involve enhancement of muscle tissue and sensory organs for improved strength, speed, agility, sight, hearing and smell. Advanced Bri users are capable of super-human feats such as creating illusions and breathing fire.
Bri has properties - color, sound, smell, feel, taste - each of which are unique to the individual. These properties are usually undetectable. There are two exceptions: a skilled Bri user can apply their abilities to detect the Bri of others AND extreme concentrations of Bri can be detected by non-users.
Bri is not limitless. All actions USE and EXPEND Bri. Actions that use Bri directly, such as a ninja illusion, burn Bri even faster. It's not unheard of for a novice user to pass out and be bed ridden for days due to fatigue caused by one minor Bri manipulation. In extreme cases, death is a possibility.
It should be noted that there are Bri manipulators outside of the fox clans, though they either explain their abilities differently or not at all. They are most likely unaware of Fox Ninja theory or the term Bri.
Known Examples of Bri Manipulation:On multiple occasions, using Bri-powered illusions, Guy McFly convinces his enemies that he is a small green leaf.

Guy McFly concentrates Bri in his eyes in order to view Ralph's Bri, which Ralph is in turn using to support the weight of his body.

Ralph is not familiar with the concept of Bri, but McFly would identify the
Ralph Cannon and
Ralph's Gift as extreme concentrations of Bri that can be seen by unassisted eyes.

Bri Bri Bri, stick in on your knee.
Labels: glossary