A time before illusions?

Pesic speaks of the need for a trial and refinement for seekers before they can be able to question nature rightly. He says: “Their sensibilities must be scourged of common human “knowledge drenched in flesh and blood”; they must achieve a kind of chastity immune to the seductions of mere appearances” (Pesic, 31). Bacon is looking for a process to “deliver the mind from its illusions” (Pesic, 32), which must have been accumulated over time. So then why does Bacon choose to use myths and parables as his means of communicating ideas when they would seem to be like those illusions and corrupting the message? In Bacon’s preface, he asserts that by using these parables, Bacon seems to be trying to return to a time before corruption had crept upon man. He says on page 608: “when the inventions and conclusions of human reason were as yet new and strange, the world was full of all kinds of fables, and enigmas, and parables, and similitudes: and these were used not as a device for shadowing and concealing the meaning, but as a method of making it understood…for as hieroglyphs came before letters, so parables came before arguments” (608). According to Bacon people then only cared about what appeared to the senses. The parables are then the most naked description of these important ideas. So Bacon is trying to avoid the myths and illusions that corrupt our understanding by returning to a time before we had to consider them at all. Is this the method to his seeming madness of messing with all these myths? He is not being tongue-in-cheek, but instead he is being a believer (perhaps idealist) in the idea that the human state-of-nature is good and uncorrupted by society like a Rousseau?