Say all these with fire and breath, completing the first round, then likewise beginning the second, until you have completed the seven immortal gods of the world.

The rubric turns the vowel-series into a machine with seven cycles. You do not sound the names once; you run the whole sequence through, complete it, then begin again — seven times, one round for each of the seven immortal gods of the world, the planetary powers. The vowels and the planets are the same seven, so the sevenfold repetition is not padding but structure: each pass 'completes' one of the seven governors. The instruction “with fire and breath” (metà pyròs kaì pneúmatos) is the rite's constant refrain made literal one last time — the sounds are to be produced with an actual flame present and with forced breath, the body's fire and air joined to the cosmic ones the prayer kept invoking. The whole immortalization has been, from first to last, a discipline of breathing fire into vowels; here it is set to a count of seven.