Mysticism is a difficult concept to explain. The dictionary definition describes mysticism as “the belief that there is hidden meaning in life or that each human being can unite with God.” In fact, mysticism encompasses a wide range of religious and spiritual beliefs, which may or may not indulge in practices such as magic, the occult and/or religious ecstasy. Today, mysticism is a quirky movement often associated with New Age spirituality and paganism. But it has a long and fascinating history dating back to Ancient Greece. Mysticism became particularly popular during the Renaissance, which has led academics such as Ernst Cassirer to reject Renaissance philosophy as ‘modern’ since many of its thinkers embraced elements of magic and mysticism.