I would consider this if someone was able to demonstrate a way to distinguish these phenomena from altered states of mind (i.e. hallucinations). We know and can demonstrate that the human psyche can easily be manipulated in various ways (psychological manipulation, drugs, magnetic fields, sleep depravation, stress, etc.) to cause such experiences.
Some actual evidence for for "past life regressions" and "astral projection" would be nice...
PLR is real, read the works of Michael newton and others. Over 8000 PRL from people of all kind of age and background describe the same things happening once we pass on the other side. Definitely not hallucinations. Actually scary how people still think that instead of exploring for themselves.