Kardecism is a spiritual and philosophical movement based on the teachings of Allan Kardec, a French educator and philosopher. It emerged in the 19th century, primarily through Kardec's book, The Spirits' Book, which outlines the principles of Spiritism. This doctrine emphasizes the existence of spirits, reincarnation, and moral evolution, aiming to provide a rational understanding of life and the afterlife. Kardecism promotes the idea that spirits can communicate with the living, offering guidance and wisdom. It encourages individuals to develop their moral and intellectual capacities, fostering a sense of responsibility and ethical behavior. The movement has influenced various spiritual practices and continues to have a following, particularly in Brazil.