Fair Folk

The Fair Folk are creatures composed of raw Essence, and inhabit the Wyld – the place that exists between the ordered Creation and pure Chaos. Inhuman and beautiful beings born from chaos, they feed on the dreams and aspirations of the inhabitants of Creation in order to give them strength and form in their own intermediate realm. (In other words, they EAT PEOPLE'S SOULS.) In essence, they are the "kissing cousins" of the Primordials; their territory having been pushed back when the Primordials formed Creation. They prey upon the dreams of mortals and do a brisk trade with the Guild (a powerful economic organization in Creation) in slaves... well, the souls of slaves.
The Raksha are divided into four castes: Diplomats, who favor the Staff Grace and the virtue of Conviction; Entertainers, who favor the Cup Grace and the virtue of Compassion; Warriors, who favor the Sword Grace and the virtue of Valor, and Workers, who favor the Ring Grace and the virtue of Temperance. Noble Raksha belong to two of the four castes, favoring the graces and virtues of both. There is also a fifth Grace, the Heart Grace, which is associated with identity and the trait of Willpower. Graces are differing outlets for the use of Essence and are similar to the suits of tarot. 
The most powerful of the Fair Folk are the Unshaped. Unlike the Raksha, the Unshaped are unable to survive within Creation for extended periods of time, each Unshaped is actually a symbiotic cluster of Fair Folk consisting of a single "guiding intelligence" and one or more "subsidiary intelligences" with no true form.
Being born from a place of fluid reality that resembles a Loony Tunes skit as much as it does creation, fair folk have difficulty functioning like "real" people. For one thing they suffer from "calcification", their natural unshaped forms are incompatible with creation's stagnant, static existence. Even when they take on a semi-real shape (as a Rakasha) they bleed essence while in creation and must feed on dreams and souls to keep themselves alive. Secondly a fair folk's emotions and virtues are entirely artificial, represented by their graces. 
When their phony identities break down they suffer from 'Bedlam'. This can have effects such as losing the ability to comprehend that other people aren't just figments of his imagination (conviction) or forgetting that he is capable of inflicting harm on others (valor).