In this guide

A Parisian schoolteacher sat in a darkened room in 1854, watching a table lift itself off the floor. The table did not rise by trickery. It rose, the mediums insisted, because the dead wanted to speak. That teacher, Hippolyte Léon Denizard Rivail, would rename himself Allan Kardec and build from those séances a system he called Spiritism, a codified doctrine of reincarnation, moral evolution, and communication with the invisible world. It became the most influential occult movement of the nineteenth century, and it remains the dominant spiritual framework for millions in Brazil, France, and beyond.

The movement is not a loose collection of ghost stories. It is a structured philosophy with its own cosmology, ethics, and practice. We keep a copy of The Spirits’ Book on the reference shelf, its spine cracked, because no understanding of modern mediumship, reincarnation beliefs, or the global spread of occult thought is complete without Kardec.

What Exactly Is Spiritism? The Definition

Spiritism is a philosophical and religious doctrine founded on the existence of spirits, their progressive moral evolution through multiple incarnations, and the possibility of communicating with them through mediums. Kardec distinguished it sharply from “spiritualism,” which he considered a broader English-language term covering any belief in spirits. Spiritism was a science of observation, a philosophy of moral consequences, and a religion grounded in reason.

The core claim is simple: we are immortal spirits temporarily housed in bodies. Each life is a classroom. Death is a release, not an end.

Where Did Allan Kardec Come From? The Man Behind the Doctrine

Hippolyte Léon Denizard Rivail was born in Lyon in 1804, the same year Napoleon crowned himself emperor. He studied under Johann Heinrich Pestalozzi, the Swiss educational reformer who believed children learned best through observation and experience rather than rote memorization. Rivail became a teacher, wrote textbooks on grammar and arithmetic, and ran a small school. He was, by every account, a rationalist.

Then the tables began to lift.

In 1854, a friend told Rivail about the “turning tables” craze sweeping Europe. Families gathered around furniture, placed their hands on the surface, and watched it spin, tilt, or tap out messages. Rivail was skeptical. He attended a séance in 1855 and watched a table rap out the alphabet. The spirits, the mediums said, wanted to speak with him specifically.

Rivail did not convert overnight. He spent two years attending séances, taking notes, and cross-examining the spirits through multiple mediums in multiple cities. He asked the same questions to different spirits through different channels, looking for consistency. When he found it, he compiled the answers into a book.

He published The Spirits’ Book in 1857 under the pseudonym Allan Kardec. The name, he claimed, had been revealed by a spirit in a past life: he had been a Druid priest named Allan Kardec in pre-Roman Gaul. The pseudonym stuck. The book sold out in weeks.

What Does Spiritism Actually Teach? The Doctrine in Detail

Kardec organized the spirits’ answers into four books. The first, The Spirits’ Book, covers the nature of God, the universe, and the soul. The second, The Mediums’ Book (1861), is a practical manual for communication. The third, The Gospel According to Spiritism (1864), reconciles the doctrine with Christian ethics. The fourth, Heaven and Hell (1865), describes the afterlife.

The doctrine rests on five pillars.

Reincarnation is not a punishment. It is a school. Spirits incarnate repeatedly, in different bodies and circumstances, to learn specific lessons. A cruel person may return in poverty. A generous person may return with power. Each life corrects a previous imbalance. This is not karma as punishment. It is karma as curriculum.

Spirits are not omniscient. They know more than the living, but they are still evolving. Some spirits lie, exaggerate, or confuse themselves. Mediums must test every communication against reason and moral consistency. Kardec warned that most “spirit guides” were actually lower spirits pretending to be wise.

Mediumship is a natural faculty, not a supernatural gift. Everyone has some capacity for mediumship, though it varies in strength and type. Kardec classified mediums by their dominant faculty: writing, speaking, hearing, seeing, or feeling. The best medium, he wrote, was the one who could set aside their own thoughts and let the spirit write through their hand.

God is the supreme intelligence, but not a personal deity. Kardec described God as eternal, immutable, immaterial, unique, all-powerful, and supremely just. There is no hell of eternal fire. Punishment is temporary and corrective. The worst fate a spirit can face is stagnation: refusing to learn.

Morality is objective and discoverable. The spirits consistently taught the same ethical principles across different mediums and countries: love your neighbor, forgive injuries, work for the common good. Kardec treated these as empirical findings, not revelations. The spirits confirmed what reason already showed.

How Did Spiritism Spread? From Paris to the World

Within a decade of The Spirits’ Book, Spiritism had crossed the Atlantic. It arrived in Brazil in the 1860s through French immigrants and translated books. The Brazilian elite embraced it as a rational alternative to Catholic dogma. By the 1880s, Spiritist societies had formed in Rio de Janeiro, Salvador, and São Paulo.

Brazil became the movement’s second home for a specific reason: the existing African and Indigenous traditions already included mediumship, ancestor veneration, and reincarnation beliefs. Spiritism did not replace them. It gave them a European philosophical framework. The result was a hybrid: Umbanda, which blends Kardec’s moral teachings with African orixás and Indigenous practices.

The movement also spread to Cuba, Argentina, and Puerto Rico. In France, it declined after Kardec’s death in 1869, partly because his successors lacked his organizational discipline and partly because the Catholic Church condemned it. But in Latin America, it never stopped growing. Today, Brazil has more Spiritists than any other country, with an estimated 3 to 15 million adherents depending on how broadly the term is defined.

How Does Spiritism Compare to Spiritualism? The Difference That Matters

The two terms are often used interchangeably. Kardec insisted they were not the same.

Spiritualism, as practiced in the English-speaking world, emerged around the same time. The Fox sisters of Hydesville, New York, began hearing mysterious rapping sounds in 1848 and claimed they were communicating with a murdered peddler. Spiritualism spread rapidly through the United States and Britain. It emphasized direct communication with the dead, often for comfort or proof of survival. It had no unified doctrine, no central text, and no systematic philosophy.

Spiritism, by contrast, was a complete system. It had a founder, a canon, a cosmology, and a moral code. Kardec did not just say the dead could speak. He said what they said, what it meant, and what the living should do about it.

The practical difference shows in the séance room. A Spiritualist medium might deliver a message from a grandmother about a lost brooch. A Spiritist medium would be more likely to discuss the grandmother’s current stage of evolution, the lessons she is learning, and the moral implications for the living. The brooch is not the point. The progress is the point.

What Do People Get Wrong About Spiritism? Common Misconceptions

The most persistent error is that Spiritism is a form of ancestor worship. It is not. Spirits are honored as teachers, not worshipped as gods. Prayer is directed to God, not to the dead.

Another mistake is treating Spiritism as identical to Kardec’s personal views. Kardec was explicit that the doctrine came from the spirits, not from him. He saw himself as an organizer and editor, not a prophet. The books are titled The Spirits’ Book, not Kardec’s Book.

A third error is assuming Spiritism rejects Christianity. Kardec considered Spiritism the true fulfillment of Christian ethics. He wrote The Gospel According to Spiritism to show that the spirits’ teachings aligned with the moral core of the Gospels while rejecting the Church’s dogmas about hell, original sin, and eternal damnation.

FAQ

Is Spiritism the same as Kardecism?
Yes. “Kardecism” is a common term in Brazil and Latin America for the specific doctrine founded by Allan Kardec, though practitioners prefer “Spiritism.”

Do Spiritists believe in God?
Yes. God is the supreme intelligence and first cause of all things. Spiritism is not atheistic, though it rejects the anthropomorphic God of organized religion.

Can anyone become a medium?
Kardec taught that mediumship is a natural faculty present in everyone to some degree. It can be developed through practice and discipline, but not forced.

The Legacy of a Rational Mystic

Allan Kardec built a bridge between the Enlightenment and the occult. He applied the methods of science to the phenomena of the séance room and produced a system that satisfied both the rationalist and the mystic. The tables that lifted in Paris are long still. But the questions Kardec asked about who we are, where we come from, and what happens after death have not stopped being asked.

For those who want to trace the lineage of modern mediumship or understand why millions of Brazilians consult spirit guides before making major decisions, the path leads back to a schoolteacher who decided that the dead had something worth saying.

Explore the broader tradition in our guide to occult history, or examine the related concept of mediumship in the glossary. For the full story of how Spiritism shaped modern esoteric thought, see our article on Kardec’s influence.