The flesh does not by its own virtue purify, but is purified by virtue of the Word by which it was assumed, when 'the Word became flesh and dwelt among us' (Jn. 1:14).
Jesus took His flesh from the flesh of Mary
Why then be perverted and follow thy flesh? Be it converted and follow thee.
It was in His flesh that Christ walked among us and it is His flesh that He has given us to eat for our salvation; but no one eats of this flesh without having first adored it . . . and not only do we not sin in thus adoring it, but we would be sinning if we did not do so.