The masks are something we put on in order to protect ourselves or because we wish to be unnoticed.
Dream dictionary: Masks dream meanings
…To dream that a mask is covering your face suggests that you’re acting hypocritically or at least you’re hurting someone with your lies. To dream about other people that are wearing masks suggests that you may have opponents. Dreaming of attending a masquerade suggests that the dreamer likes trivial, false and ostentatious fun, vulgar pleasures and that he or she is an irresponsible person. To dream of masks has always been known as a warning against coward people that are trying to harm the dreamer, therefore, to dream about a mask, either if you see it hung or in any other place, is considered a warning. When a woman dreams about a masquerade or that she’s using a mask, it symbolizes that she enjoys being unfaithful….
…Dreaming that you are in a dance announces upcoming holidays, fun, joy, sentimental conquests and material achievements. Dreaming of being in a dance with clothes from the beginning of the century, with soft and romantic music like waltzes, suggests that you are living very restlessly and you long for regaining your mental and emotional balance. Dreaming that you are in a costume ball or wearing carnival masks indicates that you are looking for pleasure, fun, and you’ll soon find it, but as a natural consequence, it will end in headaches and other problems, especially if the dreamer is a woman; in a man it indicates problems in the affairs hes handling. The costumes and masks have always indicated lies, deception, fraud and losses. Dreaming that you are in a modern dance party, with loud music and peculiar clothes, suggests that you live or work in an unpleasant environment that…
Dreaming of masks is signal of false and hypocritical friends. Dangers ahead.
…Dreaming that you are participating in a carnival, portends that you are soon to enjoy some unusual pleasure or recreation. A carnival when masks are used, or when incongruous or clownish figures are seen, implies discord in the home | business will be unsatisfactory and love unrequited….
A bullet proof jacket maker in a dream represents someone who makes difficult work easier, one who helps people to attain their goal, a marriage broker, one who teaches people about good conduct, or one who disseminates knowledge or teaches about behavior modification, though he masks hypocrisy.