I was introduced to Hidalgo Quixote, Knight of the Woeful Countenance in high school and was overtaken by the power of the music and the story. Two years later, I was living in Portugal. Though it wasn't Spain, I still felt the same breeze, and saw the same type of windmills that Quixote tilted in his tilted reason.
Joseph Smith once observed that, "by proving contraries, truth is made manifest," (History of the Church 6:428), and Aristotle once said that if you want to find truth, invert. Cervantes follows this pattern of putting things upside-down to show right-side-upness. He accentuates reality by taking an insane man as his lead character. The paradox, however, is that Quixote seems to be the sanest person in the story.
"The Man of La Mancha" has two advantages over its parent-text "Don Quixote." The first is that Wasserman, et al. did a marvelous job of pairing down Cervantes' two part book into a one act play. A lot of Quixote's adventures are funny parody, but it at times becomes a bit over-done. The play captures the essence of the Quixote-Idea without any gas. "Brevity is the soul of wit," as Shakespeare testified.
The second advantage is the music. "The Quest (The Impossible Dream)" is a triumph not only for Wasserman et al, but it is a triumph for humanity. So this book needs to be read with the soundtrack. The original Broadway is my favorite, since it captures the Iberian wind that blows over the story. The Peter O'Toole film is too produced and had too many sweet strings that drench out the Spanish guitars.
You know how good a work of art is by seeing how it is parodies. Quixote has been copied on "Quantum Leap," and Alf, and Jim Neighbors sung "The Quest" on Gomer Pyle. There is even a cartoon "Don Coyote and Sancho Panda." And, of course, there is the classic Mr. Magoo (Jim Baccus) version of Don Quixote.
So buy, and enjoy this play. Read along with the movie, and ponder reality through the eyes of an insane man.