Understand the great difference between their initial state and this one. Initially, they were levels intended to produce evil, and it could be said that this purpose permeated every single part of them, because each part had to produce its corresponding evil. Now, however, as each level was repaired – in the sense of emerging from this task of producing evil – it stood to be rectified of the damage caused to it by the evil, except that evil did not disappear from the world, as stated above.
If so, it means that evil remained able to damage that level since it was not yet fully and completely established so as to be able to rule and endure for ever. Nevertheless, we say that the evil was outside them in the sense of being outside of and separate from their mission. For now, the various levels that were sifted out and cleansed of the evil had a purpose opposite to that of evil, since now their mission was that of repair and not of destruction as it had been at first, when their function was rather to cause the destruction we spoke about above.
However, since evil exists in the world – meaning that they are not immune to destruction, which, though not caused by themselves, may come upon them from elsewhere – we may therefore say that evil is outside them.