The plot of Pieter Brueghels picture called The Blind Leading the Blind (1568) is connected with the Evangelic parable about an irrational blind man, who agreed to be a guide for his fellow-sufferers.
During several centuries, this parable served as a didactic lesson for people whose behavior was dominated by spiritual blindness. In the picture The Blind Leading the Blind, Pieter Brueghel tried to show the moral tragedy of humanity through the physical ugliness of his characters.