Bridges between Worlds explores Icelandic spirit work, known as andleg mál, which features trance and healing practices that span earth and spirit realms, historical eras, scientific and supernatural worldviews, and cross-Atlantic cultures. Based on years of fieldwork conducted in the northern Icelandic town of Akureyri, Corinne G. Dempsey excavates andleg mál's roots within Icelandic history, and examines how this practice steeped in ancient folklore functions in the modern world.

Weaving personal stories and anecdotes with engaging accounts of Icelandic religious and cultural traditions, Dempsey humanizes spirit practices that are so often demonized or romanticized. While recent years have seen an unprecedented boom in tourist travel to Iceland, Dempsey sheds light on a profoundly important, but thus far poorly understood element of the country's culture. Her aim is not to explain away andleg mál but to build bridges of comprehensibility through empathy for the participants who are, after all, not so different from the reader.