Remember the difference between the personality and the individuality. Personality is that which is conferred upon you by the society, by the people who bring you up. Individuality is that which you bring into the world with yourself. Individuality means your original face. Personality means the mask, the painted face.
Nobody comes as a Christian or a Hindu; hence the Christianity and Hinduism that are imposed upon you are part of your personality. They are not part of your essence, your essential core.
Nobody comes into the world with adjectives, all adjectives are added to you.