“Then comes Perseus again, in the adventure:
which preceded the sea-monster. He is cutting off
the head of Medusa, and Athena is shielding him.
He has done the daring deed, but has not looked,
except at the reflection of the Gorgon in the shield,
for he knows the cost of looking at the reality.

 

“In the middle of the wall, above the postern Or perhaps, “rear window.” 
is constructed a shrine of Athena. The goddess is
‘of marble, and is not in harness but as a war-goddess.
would appear when at peace.