Enrico Baj ... illustration from The Book of Imaginary Beings by J L Borges 1973

"Let us move now from the zoo of reality to the zoo of mythology, that zoological garden
whose fauna is comprised not of lions but of sphinxes and gryphons and centaurs.
The population of this second zoo should by all rights exceed that of the first,
since a monster is nothing but a combination of elements taken from real creatures, and the
 combinatory possibilities border on the infinite...
Readers browsing through our own anthology will see that the zoology attributable to

dreams is in fact considerably more modest than that attributable to God. We do not know what the dragon means, just as we do not know the meaning of the universe, but there is something in the image of the dragon that is congenial to man's imagination, and thus the dragon arises in many latitudes and ages. It is, one might say, a necessary monster." 

from The Book of Imaginary Beings (Borges, 1954)

Jorge Luis BORGES... drawing... Self Portrait

Poignantly relating to self-portraits, Borges wrote in his The Art of Poetry:

To gaze at a river made of time and water
And remember Time is another river.
To know we stray like a river
and our faces vanish like water …

Sometimes at evening there's a face
that sees us from the deeps of a mirror.
Art must be that sort of mirror,
disclosing to each of us his face.