👉 Sertulum is a type of prayer or meditation technique that involves sitting cross-legged on a cushion, closing one's eyes and focusing on a specific object or thought. It originated in ancient Egypt during the Middle Kingdom era (2050 BC to 1687 BC) as part of religious rituals and ceremonies. The term "sertulum" is derived from the Greek word "sérōlo," which means "cross-legged." The practice involves sitting cross-legged on a cushion