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air that has been pushed so hard that its force is suddenly
struck as with a blow. In this way there often come
clouds and rain, thunder and lightning, and all the
things that were spoken of above. There are also
other reasons why such things occur, but we have
briefly discussed the ones that are most useful
to understand, even superficially. And so I will end
this topic in order to speak of the fire that is located underneath
the air on high. [rubric:] Of fire and the stars that seem to fall [/rubric]
You must know that above the air is
fire. This air is of very great
splendor and nobility.
And due to its great subtlety there is no moisture in
it, so that it is clearer than the air that we breathe and
more subtle, just as our air is clearer and more subtle
than clear water, or than water is compared to the earth.
This air where there is no moisture extends as far as the moon.
One often sees below this air certain sparkles of
fire, which seem to be stars. People say they are stars
that have left their rightful place and are moving about, but
they are not. Rather they are a kind of
fire that arises in the air from certain