Alchemy

Alchemy is the ancient metaphysical science/mystical art of manipulating and altering matter by using natural energy. This act is known as "Transmutation" and its sequence is usually described as: Comprehension - Understanding the inherent structure and properties of the atomic or molecular makeup of a particular material to be transmuted, including the flow and balance of potential and kinetic energy within. Deconstruction - Using energy to break down the physical structure of the identified material into a more malleable state so as to be easily reshaped into a new form. Reconstruction - Continuing the flow of energy so as to reform the material into a new shape. The proper application of this craft requires not only a full understanding of chemistry and ancient alchemical theory, but also a sort of natural talent towards recognizing and manipulating the physical objects with energy, which require uncommon levels of intelligence and aptitude. Those remarkable individuals capable of studying and practicing alchemy are known as "Alchemists". There are many paths by which alchemists can transmute the various substances of the world, with some alchemists being said to transmute by way of the Four Classical Elements (Water, Earth, Fire and Air) and some by way of the Three Essential Principles (salt, sulfur and mercury), but the basic tenet at the very foundation of all alchemy is that of Equivalent Exchange.

## Equivalent Exchange:

The mystical practice of alchemy to create objects out of raw matter or turn one object into another is widely believed to be capable of anything - indeed alchemy is often viewed as magical or miraculous by those unfamiliar with the craft - but it is a science and as such is subject to certain laws and limitations, all of which fall under the concept of Equivalent Exchange: "In order to obtain or create something, something of equal value must be lost or destroyed." In standard practice, Equivalent Exchange is separated into two parts: The Law of Conservation of Mass, which states that energy and matter can neither be created from nothing nor destroyed to the point of elemental nonexistence. In other words, to create an object weighing one kilogram, at least one kilogram of material is necessary and destroying an object weighing one kilogram would reduce it to a set of parts, the sum of which would weigh one kilogram. The Law of Natural Providence, which states that an object or material made of a particular substance or element can only be transmuted into another object with the same basic makeup and properties of that initial material. In other words, an object or material made mostly of water can only be transmuted into another object with the attributes of water.

### Rebound:

Since the alchemical forces being manipulated are not human in origin, but of the world as a whole, the consequences for attempting to bypass the Law of Equivalent Exchange in transmutation are not merely failure and cessation. When too much is attempted out of too little, what occurs is called a Rebound, in which the alchemical forces that are thrown out of balance on either side of the equation fluctuate wildly of their own accord in order to stabilize themselves - taking or giving more than was intended in often unpredictable and catastrophic ways such as accidental mutation, serious injury, or death.

## Transmutation Circle:

Though no machine or equipment is needed to produce the energy necessary for transmutation, merely understanding the sequence of transmutation and the limitations of Equivalent Exchange is not enough. In order to begin an alchemical transmutation, a symbol called a Transmutation Circle is necessary. A Transmutation Circle can either be drawn on the spot when a transmutation is necessary (in chalk, pencil, ink, paint, thread, blood or even traced in dirt) or permanently etched or inscribed beforehand, but without it, transmutation is generally impossible. All Transmutation Circles are made up of two parts: The circle itself is a conduit which focuses and dictates the flow of power, tapping into the energies that already exist within the earth and matter. It represents the cyclical flow of the world's energies and phenomena and turns that power to manipulable ends. Inside the circle are specific alchemical runes. These runes vary widely based on ancient alchemical studies, texts and experimentation, but correspond to a different form of energy, allowing the energy that is focused within the circle to be released in the way most conducive to the alchemist's desired effect. In basic alchemy, these runes will often take the form of triangles (which, when positioned differently, can represent the elements of either water, earth, fire or air), but will often be composed of varying polygons built from different triangles. For example: the hexagram is a commonly used base rune in Transmutation Circles because it creates eight multi-directional triangles when inscribed and can therefore represent all four classical elements at once. Other, more esoteric runes (including astrological symbols, symbolic images and varying lines of text) are prevalent and represent a multitude of other, specific functions for the alchemical energy that is released.

## Human Transmutation:

Unfortunately, these experiments have given birth to a dark and sinister side of alchemy. Whether out of despair, malice or inquisitive hubris, several alchemists have been known to attempt the application of transmutation to human bodies and souls, in essence, playing god with human lives. But, just as the Law of Equivalent Exchange applies to the transmutation of non-living matter, devastating rebounds can occur in Human Transmutation because human lives and souls are priceless according to the flow of the world.

### Resurrection:

Attempts to bring deceased human beings back to life are the most common practices to be called Human Transmutation. Using various experimental theories and methods, multiple alchemists have endeavored to resurrect dead loved ones, but such pursuits are always failures, forbidden by the flow of the universe and alchemy itself.

It is determined that resurrective Human Transmutation is impossible because a soul that has left the mortal coil has passed on into the afterlife and can never be called back by human means. The attempt will cause a rebound due to both the inherent lack of any particular substance able to match a human soul in value and the fact that the initiated transmutation is reaching for an unattainable goal. Of the known attempted Human Transmutations, the rebound has been the "taking" of parts of the initiator's body out of the living world and into the void of the flow. It should be noted that the size of the body parts taken are generally equal to the size of the human being transmuted, in accordance with the law of Equivalent Exchange.

In addition, for having trespassed in domain of the Seven Night Emperors with Human Transmutation, the initiating alchemists are essentially called into The Gate of Truth to face the Night Emperors themselves. Being pulled through the gate grants alchemists great alchemical and universal knowledge - in exchange for paying a physical toll which usually takes the shape of the body parts "taken" by the rebound - and the ability to perform transmutations without a circle.

### Soul Binding:

Another terrible form of Human Transmutation is the manipulation of human souls. Though appearing on no official records, there have been experiments with Human Transmutation involving the extraction of souls from human bodies and the alchemical binding of said souls to inanimate objects usually by way of a rune drawn in blood on the object itself. Though not all the specifics of soul binding have been made clear, it has been explained that the iron in the blood bonds alchemically with the iron in the object (as most instances of soul binding has used metal armor as a vessel) and the blood itself remains bound to the soul of the person from which it was taken. The Blood Runes themselves differ based on the theories and style of whatever alchemist performed the binding, but multiple different Blood Runes that have been revealed depict a spark or flame (presumably signifying a soul) hemmed in by other symbols in a blood-drawn Transmutation Circle that suggests a soul trapped within a container. In essence, these souls exist in the mortal plane without their bodies, are able to manipulate the objects to which they are bound and communicate verbally with beings around them but, of course, there are caveats. Despite the fact that these souls cannot feel pain or die by conventional means, since the "bodies" they now inhabit are not mortal, the act of binding two such different things together is only temporary, as the soul and vessel will eventually reject each other and separate. Though the manipulated soul is independent of its original body, the issues regarding the storage of knowledge and memory suggest that, for a soul binding to remain intact, the original body must remain alive somewhere. This creates another issue, as the soul and its original body will be inexorably drawn to one another.

### Human Chimera:

Chimeric Alchemy is a branch of bio-alchemy that seeks to alchemically "marry" two dissimilar life forms into a new creature, but even though this science skirts the line of playing God, the prohibition of Human Transmutation forbids alchemists from incorporating human beings into the practice of chimera production. However, there are alchemists who flout this decree and step across the threshold into monstrous experimentation.

## Origins:

Aalchemy is said to have been taught to Amestrians over 40 million years ago by a mysterious man known as The Philosopher from the East and is explained to harness the diastrophic energy that is released from the deaths of all living things.