The persona is a complicated system of relations between individual consciousness and society, fittingly enough a kind of mask, designed on the one hand to make a definite impression upon others, and, on the other, to conceal the true nature of the individual.
“The Relations between the Ego and the Unconscious” (1928). In CW 7: Two Essays on Analytical Psychology. C.G. Jung, P.305
Even if we are not on a masquerade party, or in a Halloween costume, we wear them. More often than we think, even. Each person we face, everyday, is talking to an aspect of you that cannot be seen by others. We act differently with our family, our colleagues, workmates, classmates and friends. Each one a side of you that you don’t often see.