Poem with explanation

Main idea

The poet compares himself with a sharp person. The person has clear images. He trusts his clear images and assumes relevancy of his findings. His facts fail him. He gets confused and therefore dull in understanding. On the other habd, the poet is dull and has broken images. He mistrusts his images and doubts his find. He thinks more and more. He finds the truth and therefore becomes sharp.

Reference.

The lines have been taken from the poem "In broken images" by Robert Graves.

Context.

The poet compares himself with a sharp person. The sharp person has clear images. He assumes relevancy of his findings. His facts fail him. On the other hands, the poet is dull and has broken images. He mistrusts his images and finds truth.