Now if you have in your thought passed through the air and all the things of air, reach with me to heaven and the things of heaven.  And let faith lead us rather than reason, if at least you have learnt the feebleness of the latter in matters nearer to you, and have known reason by knowing the things that are beyond reason, so as not to be altogether on the earth or of the earth, because you are ignorant even of your ignorance.