Lying was a talent in the lower world . How does Gulliver use this fact to enlighten himself ?

Gulliver learns that the governor has the power to bring back the dead for the purpose of serving him. Gulliver is given the option to bring back anyone he would like. He chooses Alexander the Great, who tells Gulliver that he actually died because he drank too much. He then brings back a parade of other famous dead.