1. Create a stable occult space, like a pyramid, or like the one on the cover of "The Practice of Magical Evocation"
2. Create a doorway or magic triangle, some kind of 'doorway'
3. Evoke a Enochian intelligence. Perhaps by imprinting the 'entities' Sigil on the doorway, repeating its name, the 'keys' of the Aethers, filling the room with its corresponding element or planetary energy, and filling myself with said energy.