1. Knowing one's self
2. Knowing nature 
3. Destiny(can be translated as calling)
4. Harmony
5. The heart
6. The eye
7. Love

Taken with permission from this page Explaining AKBAN's Ninjutsu ethical code

In ninjutsu, the mind must be prepared before it can receive what it must do. Derived from Shinto and Zen buddhism, the active mind must be clearly on task to make any technique work. It is said, "a naked man in an empty room can still practice ninjutsu." For ninjutsu is about a thinking, adaptive mind that is responsive to this situation, yet passive like a river on its banks.

Some ninjutsu schools start this awakening the mind with a yoga-derived system from India. A common symbol is the dorje, a double mini spear meditation tool that helps the ninja attain a form of enlightenment by following a series of mantras. Or with preset meditative positions with the Tendai or Lotus Sutra from Buddhism. Shinto allowed the ninja to develop the meditations into kuji'in and Kuji-kiri, as a means to channel ki-energy toward allowing the mind to accept the pain of training, and understanding the elements. The meditations allows the ninja to release the material world, to form in the mind the mindset necessary to study the elements, and to allow ki to flow freely through the meridians and hence through the chakras.

Some trained in ninjutsu can meditate for many hours. Other ninja trained in winter, under waterfalls stressing their bodies to the limit, to help cleanse their souls. For some ninja, impurity of the soul is the same as impurity in steel, the soul like steel will break under pressure if the soul is not pure and mixed correctly, for the connection between mind and body is only available if the soul is there. Once the soul takes flight from the body, the connection between mind and body is forever lost, only something like a silver string combines these things with the soul. Silver can corrode and tarnish turning weak if silver is not polished regularly.

Some ninja are trained in certain schools to understand the laws of karma, castes, and interaction in society that the web of life so they would be wise in their decisions. As to combine themselves, the many elements, towards linking with heaven and earth. Ninja understand these elements and the spiritual kami each element has in its linkage to the world. To blend with the world, you must understand your place in the world, and how you fit into the way of things. If your soul is not pure, you will see things incorrectly, and then your decisions will reflect your corruption. The desire, intent, and focus must be straight. It is once held, awaken the mind, release the spirit, and steady the body, and understanding will follow.

One koan that could fit this is you cannot handle another cup of tea if your cup is full. Nobody can use the bathroom for you; you must relieve your suffering in your own way. If you are done relieving your suffering, then your mind will be a polished mind, like a mirror, it will reflect clearly on the moment, undistracted by your needs.

Taijutsu (体術, Taijutsu), literally meaning "body skill" or "body art", is a term for Japanese martial arts techniques that rely on a science of body movements. Historically, the word taijutsu was often used interchangeably with jujutsu (as well as many other terms) to refer to a range of grappling skills.

Taijutsu, is a form of traditional Japanese unarmed combat common to a plethora of arts utilized throughout main land Japan's history. Contemporary belief askews it as singularly applicable to the Takamatsuden arts; this is erroneous. Taijutsu is a generic term meaning 'body skills' and thus is not particular to one specific school.

Kenjutsu (剣術, Kenjutsu) is the Japanese martial art specializing in the use of the Japanese sword (katana).

Generally, kenjutsu takes the form of partnered practice exercised through kata (pre-arranged forms, as opposed to competition, solo, or freestyle practice). A practitioner of kenjustu is called a kenjutsuka.

Kenjutsu is the core means by which koryū train their students to employ the Japanese swords against a variety of classical weapons, while indoctrinating the student in the combative mindset of the school. Therefore, kenjutsu can be seen as an integral aspect of all classical Japanese sword school curricula.

Bōjutsu (棒術, Bōjutsu), translated from Japanese as "staff technique", is the martial art of using a staff weapon called bō which simply means "staff". Staffs are perhaps one of the earliest weapons used by man. They have been in use for thousands of years in Eastern Asia. Some techniques involve slashing, swinging, and stabbing with the staff.

Shurikenjutsu (手裏剣術, Shurikenjutsu) is a general term describing the traditional Japanese martial arts of throwing shuriken, which are small, hand-held weapons used primarily by the Shinobi or "Ninja" in Feudal Japan, such as metal spikes (bo shuriken), circular plates of metal known as hira shuriken, and knives (tantō). Shuriken-jutsu was usually taught among the sogo-bugei, or comprehensive martial arts systems of Japan, mostly in Ninjutsu, as a supplemental art to those more commonly practiced such as kenjutsu, sojutsu, bōjutsu and kumi-uchi (battlefield grappling) or jujutsu, and is much less prevalent today than it was in the feudal era.

Sōjutsu (槍術, Sōjutsu), meaning "art of the spear" is the Japanese martial art of fighting with the Japanese spear.

Naginatajutsu (長刀術 or 薙刀術, Naginatajutsu) is the Japanese martial art of wielding the naginata. This is a weapon resembling the medieval European glaive. Most naginatajutsu practiced today is in a modernized form, a gendai budō called naginatadō or atarashii naginata (new naginata), in which competitions also are held.

Kusarigamajutsu (鎖鎌術:くさりがまじゅつ, Kusarigamajutsu) is the art of using the Japanese weapon Kusarigama. Kusarigamajutsu is featured in several separate martial arts such as Bujinkan (ninjutsu) and Shinto Muso-ryu. The Kusarigama is made up of three parts: the Kama (a wooden handle with a curved blade protruding at a right-angle on one and, and a small loop at the other), the Kusari (a chain attached to the Kama) and a weight at the end of the chain. In a confrontation the kusari is swung in wide sweeping arcs to distract/entangle the opponent and the Kama is used to deliver a fatal strike.

Kayakujutsu (火薬術, Kayakujutsu) (literally the art of gunpowder in Japanese) is the use of firearms, gunpowder and explosives especially by Ninja. The history and mythology surrounding ninjutsu and kayakujutsu are similar to the history of chemistry and the mythology surrounding Alchemy. Thus kayakujutsu mysticism refers to elements like the Earth (Chi) to develop Fire (Kaji) just as alchemy referred to elements just as air, earth, fire and water.

Ninja typically used bamboo, egg shells, small bottles, and wooden boxes. Egg shells glued with either rice or wax were used either like a form of pepper spray or create thick clouds of smoke, to confuse attackers (metsubushi).

Bamboo was more used for ambushes along roadways usually like claymore mines.

Small bottles were used more in the city, mainly as a noise maker, often to startle horses, or distract people.

Wooden boxes were used more to attack castles or fortifications to create openings in the castle defenses.

Hensōjutsu (変装術, Hensōjutsu) was a Japanese martial art skill involving disguise, impersonation, and infiltration.

In some ninja clans it was known as the "Shichi Hō De" (七方出, "Shichi Hō De") or, "seven ways of going" (one form of ninjutsu that has a person play a role much like an actor does in impersonating people). A ninja had to appear either as a priest, samurai, merchant, craftsman, performer, puppeteer, or farmer. To accomplish this, the ninja was a well studied sociologist observing people in other towns for long periods of time until (just like actors) ninja blended into the crowd. They acted like either one of the major classes to spy on people. Ninja thus sometimes carried one or two costumes to look like the other classes.

This is different from other methods in that the ninja needs only to appear like someone else for a short period of time. Ninja typically must learn the character traits of another class quickly and then impersonate the members of that class. For instance, if workers were walking in large numbers toward a worksite, using this skill the ninja observes the worker, copies the same clothing and walking style of the workers, then follows the crowd in just like the other workers. A good ninja ought to be able to impersonate anybody in terms of appearance.

A ninja would often have dark clothes stitched onto the inside of a normal looking peasant's outfit, so that he would simply reverse the clothes and immediately have his camouflage garb. For hiding in brush or bushes, elastic fibers on the ninja's clothes allow for branches and grasses to be attached, helping break up the ninja's outline.