The AT Field

The Absolute Terror Field (AT Field)

AT fields can be generated by any organism possessing a soul or a sentient consciousness. They are directly influenced and are affected by their source and can be manipulated in a number of ways. They are also the key to the Third Impact and the Human Instrumentality Program.

A. Types of AT Fields

1. Latent - This is the most basic AT field. All sentient life forms possess this type but this is rarely noticed. The AT field is what holds the material body of an organism and the consciousness together thus, it also plays a role in the morphogenetics of humans. It can be described by this formula:

AT Field + LCL quantity = Physical Entity (with soul)

The latent AT Field is the basis for all other types of AT Fields. When manifested, the AT Field can act as a defensive barrier, an offensive weapon and as a tool to affect other AT Fields in the area. Usually AT Fields do not become visible unless they are actively engaged in something - such as collision with matter, energy and other AT Fields.

1A. Types of Latent AT Fields

1.1 Defensive - When activated, the defensive field will distort the space around it, creating a barrier. The field doesn't become visible until it is hit with by an attack, at which point the standard octagonal fluctuations in the field can be seen.

1.2 Offensive - the offensive AT Field is the extension of a latent field in an aggressive manner. The offensive field can take on a couple of forms - either as a projection of the latent AT Field, or as a warping of the defensive AT Field.

2. Anti-AT Field - the Anti-AT Field plays an important role in the Instrumentality. These specialized fields can only be created with the aid of an S2 unit. The mass produced models' S2 engines go critical and their intertwined AT Fields merge with Lillith's into a singular Anti-AT Field. The purpose of this field is to counteract the AT Fields of the human race and reduce their bodies to LCL - from which their individual souls can be extracted.

Blood Types

The phrase blood type refers to the individuality of a specified AT Field and is identified by colors. Some AT Fields are stronger than others - compare a human's with an Angel's and you'll get the idea. There are several colors, each (apparently) having its own characteristics.
Red: Used mainly by Angels.
Blue: Reserved for Angels, blue is one of the more common colors.
Orange: Angel specific blood type.
Green: Human (enhanced by EVA) specific blood type.
Sepia: Human specific type. Sepia is the brown color seen in photo effects. This appears only during the Destrado process.