Festive advertising has never really been about the festival itself. The diya, rangoli, mithai, family gathered around a table and the perfectly dressed home are only visible markers of a much deeper advertising territory: the small, often contradictory behaviours that make celebrations feel personal. It is the person who spends the year complaining about traffic but drives eight hours home for Diwali. The mother who insists she is not making anything elaborate but has already started preparing sweets. The father who says he is not waiting for his child to arrive while checking the time every few minutes. As Manika Juneja, COO, Dentsu Creative Isobar, puts it, “The best festive advertising doesn't create emotion. It recognises an emotion that already exists.” For years, this recognition has been the foundation of festive advertising. Campaigns such as Surf Excel's Daag Achhe Hain and Asian Paints' Har Ghar Kuch Kehta Hai built their…