Personification is being utilized, the author of the sentence is attributing the moon with human-like characteristics such as faithfulness.
Personification - giving human-like qualities to non-human entities. The moon is described as "faithful" and "blind," which are human traits.
What technique is being used? The moon is faithful, although blind
If you have to choose among being dumb, deaf, or blind, which of them would you choose?
Colloquial language
There really is no technique when drawing blind, because you can't see what you draw. The only technique is the one you've mentioned (contour line drawing, which means not including shading).
Despite being blind, Amy is an energetic girl who loves to play games.
on the blind side
I am blind to what the government tells me
Were you walk being blind!!
drug therapies
The lonely old man at the park is color blind.
He apologised to the blind man.The pilots were flying blind in the thick fog.Helen Keller was deaf and blind.
Being blind should not affect your growth rate whatsoever.