No school nativity play is complete without the Three Wise Men ‘traversing afar’ bearing gifts for the baby Jesus. One of these gifts is frankincense, which for centuries has played a powerful role in many religious rituals. As an important ingredient in incense, its perfumed smoke has been a part of much religious worship since the time of the pharaohs in ancient Egypt. So why has smell become an important part of many faiths and how does it enhance religious observance? To discuss these questions, Ernie Rea is joined by Tim Jacob (Emeritus Professor at the School of Biosciences at the University of Cardiff), Kim Lahiri (Director at the International Federation of Aroma Therapists) and Dr Nicky Nielson (Lecturer in Egyptology at the University of Manchester).

Producer: Helen Lee