Although Charleroi is associated with its industrial past, the city has a discreet but well-established esoteric and occult history. Due to its rapid development in the 19th century, it became a crossroads where popular traditions, occult circles, and influential Masonic lodges intersect. The surrounding region, marked by forests and places rich in history, has also seen the continuation of folk magic practices and beliefs rooted in ancient rural traditions.

Charleroi was an active center of Belgian Freemasonry from the 19th century, attracting intellectuals and esoteric thinkers. Although few names have remained in public history, several influential figures in Charleroi's politics and industry maintained close ties with hermetic and initiatory circles. Some Belgian esotericists also spread their work on ceremonial magic and European occult traditions there.

The Passage de la Bourse, an iconic location in the city center, is said to have been the setting for meetings between esoteric initiates in the early 20th century. The Blue Tower, an ancient medieval relic, is surrounded by many legends, especially those related to ancient magical practices and the supposed presence of secret societies in the area. The woods and quarries around Charleroi are also associated with pagan rituals practiced at a time when popular beliefs were still deeply rooted in the local culture.

Charleroi hosted several Masonic lodges that played a role in transmitting esoteric and symbolic teachings. These lodges, influenced by Rosicrucian and Martinist currents, helped make the city a place where spiritual and occult reflection has always had its place, albeit with some discretion.