This study takes a look at modern accounts of collective religious visions. Five factors are discussed that make it very likely that such visions are hallucinations. In the second part of the paper, the author examines whether the same is true of Jesus’ resurrection appearances. The Gospels relate only non-glorious appearances of Jesus. This lack of glorious appearances in the Gospels is, therefore, interpreted as an indicator that the appearances were originally non-glorious and thus not hallucinations. The article's conclusion is that hallucinations provide an inadequate explanation for the resurrection appearances.