Then you give the command that the spirit manifests on the conscious-material plane. The spirit can only manifest if you give it the appropriate atmosphere, i.e., if you provide it with the material substance to materialize. This substance is life energy. LAF is the Rune that gives you the flexibility in choosing the appropriate hierarchy and spirit for your evocation. LAF gives you also the means to actually create an infinite amount of hierarchies of devas, angels, etc., that fit exactly your needs.
Theology is a Greek word that means knowledge of the gods.
The skill to interact with these beings and to put them to work is theurgy, or the command over gods. The next step is to actually create these hierarchies. We call this process theogenesis. Theogenesis means the creation of gods. A prerequisite for successful theogenesis is a command over the forces of creation.