<p>With Day of the Dead, Halloween and All Souls Day being marked in different countries around the world - Shahidha Bari's guests discuss the belief in ghosts and the search for meaning in mysticism. They are:</p><p>Dr Chris Harding is a cultural historian of Japan, India and East-West connections and is based at the University of Edinburgh. He is the author of The Japanese and Japan Story.</p><p>Dr Hetta Howes is a Senior Lecturer in English Literature at City, University of London and Deputy Programme Director for the BA in English. She is a BBC Radio 3 and 4 New Generation Thinker and the author of a new book “Poet Mystic Widow Wife: The Extraordinary Lives of Medieval Women.”</p><p>Simon Critchley is a philosopher and the Hans Jonas Professor of Philosophy at the New School for Social Research in New York, USA. His latest book is On Mysticism: The Experience of Ecstasy.</p><p>Dr Iriving Finkel is Assistant Keeper of Ancient Mesopotamian script, languages and cultures in the Department of the Middle East at the British Museum and has published The First Ghosts: A rich history of ancient ghosts and ghost stories</p><p>Producer: Lisa Jenkinson</p>