It is "the great wall" which a super-Milky Way group pile up
to. The distant heavenly bodies are bent due to the gravity of the Milky
Way of the front, and it seems to express a gravity lens phenomenon to
look like being near here, too.
It can be understood that light is bent due to the gravity of the heavenly
bodies. But, it exceeds normal understanding that the huge Milky Way exists
in the gravity lens phenomenon.