Some people with a sceptical ‘scientific outlook’ maintain that astral projection and out of body experiences are just lucid dreams in which we are dreaming that we are out of our body. It’s an interesing point of view to have in that it really doesn’t fit as a plausible explanation given the ‘data set’ of people’s experience. For example, the massive amount of data gathered on out of bodies through Near Death Experiences cannot be written off that easily.
What makes these experiences ‘proof’ of actual being out of body is the reports of those having had them that give accurate information that could not otherwise be known. It is this ‘extraneous data’ that cannot be explained away as enlivened imagination or hallucination. Conscious projectors have produced similar information that can be verified by witness reports. Some of the more famous examples are Eileen Garrett, Edgar Cayce, Robert Monroe and Jane Roberts.
What we are seeing is really a kind of belief blindness. If you already believe something, there is no way you’ll accept the validity of information that contradicts that belief, regardless of the volume and quality of data. With obstinacy, straight out the window goes open-minded scientific investigation. It is simply not enough to call these subjectively observed experiences and thus dimiss them as unobjective phenomena when all objective phenomena are observed subjectively! But I should say, it’s not my intent here to descry anyone for their beliefs, only to point out that they are just that, beliefs.