What does this quote mean, or saying, and why is it important?

“What are You, my God? I thought angrily. How do You compare to this stricken mass gathered to affirm to You their faith, their anger, their defiance? What does Your grandeur mean, Master of the Universe, in the face of all this cowardice, this decay, and this misery? Why do you go on troubling these poor people’s wounded minds, their ailing bodies?”