This is an excellent ‘amateur’ YouTube documentary on the near-death experience, pieced together from various sources, and comprised of the testimony of NDErs themselves. Watching them struggle with the ineffability of the experience, be overwhelmed with the memories and emotions, it really does seem to put into the shade scientific efforts to explain the NDE as simply “manifestations of brain functions gone awry“:
The video’s YouTube page has a list of the source videos for those who would like to explore further.