To what extent does one of the core texts show that it is dangerous to live in a state of illusion

‘King Lear’ aptly shows that it is dangerous to live in a state of illusion; all of the tragic events that occur throughout the story are the result of King Lear and Gloucester’s initial ignorance to the false illusion created by their children. Both men are unaware that their disloyal offspring are taking advantage of them, and that they have wrongfully accused their virtuous heirs. Unfortunately, when they discover their respective mistakes, it is too late to correct them, and a sinister turn of events ensues.

From the outset, Gloucester seems to be under the illusion that his bastard son, Edmund, is grateful for the upbringing that he has been given. When introducing Edmund to his friend Kent, Gloucester is obviously affectionate towards his son saying:

‘..though this knave came something saucily to the world before he was sent for, yet was his mother fair, there was good sport at his making, and the whoreson must be acknowledged.’

From this interaction, it can...