They are communicators between the third aspect of Divinity, the Creative Aspect–as it expresses itself through the creative work and in response to the thought world–and the first aspect, Life. They link and blend life and form creatively. They are closely related to the ninth group because today, unknowingly and without any true understanding, they are bringing about a concretisation of the energy of desire; this in its turn brings about the creation of things. Incidentally, therefore, they are concerned with the concretisation of money. Their work is also largely philosophical and concerned with the task of relating–factually and scientifically–the other nine types of groups so that they may work creatively upon the physical plane and the divine Plan may clearly appear as a result of this synthesis which they bring about.
(Discipleship, I, p.35-40)