Once again, a tangible sense of weight settles over the clearing; once again, as Rosy manipulates the mostly-invisible energies of the ritual, that weight deepens. It might be easier to see the patterns this time, or maybe John just has more practice; whatever the case, it's clearer now just how complex an enterprise this really is. The coloured lights push and pull on the flow of power, directing and enhancing it, weaving it together into a structure he can still only barely see.
Once again, that structure solidifies. Once again, the dance of lights becomes even more intricate, coloured glimmers racing along the lines in the ground, bringing with them invisible threads that shape that mass of power in further detail. Once again, the crystals light up ring by ring, and then the whole diagram floods with white light, and the fresh twigs flare with white flame, and Rosy looks across the circle to catch John's eye again.