in Chaucer's work of critiquing medieval superstitions and highlighting the clash between reason and superstition in medieval society Pertelote's dismissal of dreams highlights her rationality and rejection of irrational beliefs nbsp Focus on Practical Matters Second Pertelote argues that people who believe in the importance of dreams are foolish and superstitious She calls Chaunticleer a fool and coward She says that people who pay too much attention to dreams are like the old wives who believe in all kinds of false beliefs and myths nbsp Reference of Cato Pertelote dismisses the importance of dreams in the Nun's Priest's Tale She argues that dreams are often false and result from physical causes Furthermore she provides the reference of Cato who once said nbsp Attach no importance of dreams nbsp Thus Lady Pertelote argues against the importance of dreams Her rational and practical attitude contributes to Chaucer's work's thematic exploration of doubt and realism