Opera is perhaps the most perfect subject for Zizek's gaze with Hegelian negations and Absolutes Lacan's "object petit a,"Four Discourses" in the Master Signifier, the divided self,desire, don't be scared away for the cloistered world of opera can use such insights to help clarify its own anxieties self-indulgences and excesses throughout its histories. In fact opera now cannot live without someone speaking about it deeply as Zizek does, especially the self-conscious dimensions in Wagner's dramas, the negations of the negations(from Hegel) as "Parsifal" a redeemer redeeming the redemption,or dealing with "Other" those aspects that we wish we could do without but are there anyways, like feminist extremism not wanting man to be around,as in Carmen, or Tosca, or Wotan not wanting to be responsible for his pacts carved on his staff. Zizek and Dolar both bring a formidable array of concepts to opera to make some illuminations clearer I think. If you simply want opera to go on as it is without comment, simply sit back and let it wash over your brain, well this is not a book for you.