Scholars of esotericism are often asked to justify their field of research and its place in modern society. However, esotericism provides fertile ground for radical thinking and is a useful means of considering the limitations of standard western thought. Read by Leighton Pugh. Image:The Flammarion Wood engraving. The image is often used as a metaphorical illustration of either the scientific or the mystical quests for knowledge. Credit: RGB Ventures / SuperStock / Alamy Stock Photo.