What happens during the fiesta? What is the emotional result?

During a fiesta, a man can break loose of all bounds and be himself in ways that he cannot during the year, simply because he lives in a state of constraint. All types of behaviors are allowed: Drinking, love-making, setting of fireworks, and participating in elaborate dance rituals. Even murder is permitted, and often happens. According to the author, this is one time when a man looks at another man as his own brother, and sometimes kills him to prove it. The emotional result of those actions is cleansing and purifying. Form is abandoned for formlessness, and thus truth. By shedding societal constraints and the image that he must project the whole year, the Mexican returns to his essence. In Paz's imagery, the man returns to the womb from which he came, and that process purifies him (Chapter Three, page 52).