Note: This is the Free Content version of the interview with Tjalling Janssen. The full interview can be accessed as a Tier 2 Patreon member, or purchased for a one-time fee. More information at www.patreon.com/RejectedReligion. Tjalling is a PhD researcher at the Center for History of Hermetic Philosophy and Related Currents (HHP), based at the University of Amsterdam. His research interests include intermediary beings, magic, alchemy and Paracelsianism, and the reception of these subjects in (early to late) modernity. He investigates these topics from an environmental perspective as well as through social categories like class. His doctoral project entails an environmental reception history of the concept of elemental beings from the sixteenth to the early twentieth century, through its manifestations in magic, alchemy, literature, mining and agriculture.