Does seeing Jesus in a dream prove Christianity is true?

Many Christians describe Jesus appearing to them in a dream or vision, robed in light and bringing comfort. Some of them were not Christians before. They take it as a direct meeting with the risen Lord. Some point to a promise that Peter, one of Jesus' disciples, quoted at Pentecost, as the Book of Acts tells it. (Pentecost was a Jewish feast fifty days after Passover.) In the last days, young men would see visions and old men would dream dreams.

Paul, a Christian missionary of the first century, says it plainly: Satan himself is transformed into an angel of light. The deceiver's method is to come in the shape a person expects and is glad to see. Not every such dream has to be from the devil. But the experience itself gives no way to tell. The Bible warns against assuming.

Jesus told his followers not to believe anyone who says Christ is here or there. He warned that false christs (false messiahs) would come and show great signs and wonders. He said his return would be nothing private. It would be like lightning shining from east to west, seen by everyone at once. He gave no sign by which a private sighting could be trusted.

The Law of Moses (the first five books of the Bible) has a rule about dreamers. Even when a dreamer's sign comes true, he is not to be followed if his message leads away from God (﷾). So the question is never whether someone saw something. It is what he was told. These appearances rarely teach anything that can be checked.

A Hindu sees Krishna. A Catholic sees Mary. A Muslim sees the Prophet (ﷺ). Each is certain. They cannot all be what they are taken for. Some people say a dream of Jesus drew them away from the faith they were raised in. Others say a dream drew them to Islam. Dreams pull in every direction, so the message must be tested, not the experience. An experience found in every religion, pointing every way at once, is evidence about human beings, not for any religion. The Prophet (ﷺ) taught that a good dream is from God (﷾) and a bad one from Satan. A report in Sahih Muslim (a collection of his sayings) names a third kind: what the mind tells itself. That is why Islam rests on the revelation given to the Prophet (ﷺ), not on the dreams of his followers.

None of the four New Testament Gospels describes Jesus' height, colouring, hair or face. No portrait survives from his lifetime. Yet the figure people report is nearly always the same robed man of church walls and picture Bibles. This look took shape in Roman and Byzantine art (the art of the eastern Roman Empire) from the fourth century. Later European painting fixed it. Jesus was a Middle Eastern Jew of Galilee. The figure in these visions matches a church painting, not the man.

If Jesus did appear to someone, it would prove that he is alive, which Muslims also believe. The Qur'an says he was neither killed nor crucified, and that God (﷾) raised him up to Himself. It would not prove the Christian belief that he died on a cross for people's sins. In most of the accounts people give, he comforts and reassures. That is what a righteous prophet of God (﷾) would do. A figure who claimed to be God would be judged by that message, as Deuteronomy 13 commands. The Jesus of the New Testament Gospels never said "I am God".

The Prophet (ﷺ) said that whoever sees him in a dream has truly seen him, because Satan cannot take his form. Muhammad ibn Sirin was an early scholar of the generation after the Companions. The Companions were the followers who met the Prophet (ﷺ). Ibn Sirin added that this holds only if the Prophet (ﷺ) is seen in his real form. Those who knew him recorded his appearance in detail. So a Muslim's dream can be measured against something. A Christian has no such promise. Nothing in his scripture says Satan cannot take the form of Jesus, and Paul says Satan appears as an angel of light.

Christians who have such experiences take them as a personal encounter with the risen Christ. They see it as the fulfilment of the promise of visions and dreams in the last days.