The term 'Hot-Coals Walker' is a job description for a FAKIR, which is a person who practices asceticism and self-denial as part of their spiritual practice. A Hot-Coals Walker is someone who walks on hot coals as a form of meditation or demonstration of faith. This practice is often seen in Hinduism, Buddhism, and other Eastern religions. It is believed that by walking on hot coals, one can demonstrate their faith and devotion to their religion.