Sometimes, the best way to answer a question effectivey is to look up any words that you aren't familiar with, or haven't used in a long time, and find out the exact meaning. Dictionary.com describes the word "dichotomy" like this: "a division into two mutually exclusive, opposed, or contradictory groups." In this sense, John and Mond are at completely opposite ends of the spectrum when discussing how each should experience both body and spirit. Mond, who represents the new world's philosophy, believes that happiness comes from letting loose, doing whatever you want to appease the carnal pleasures in life, and to fulfill the human's soul with pleasure. John, on the other hand, seeks to control his soul and body through self-mastery; and, he believes that through this self-mastery one will find the ultimate happiness and joy. So, Mond would prescribe promiscuity and pleasure through conditioning while John would advocate temperance, patience, and obedience to a higher power through personal choice.