That being said though - I disagree with the notion that meditation can lead to similar experiences. Meditation can certainly create very powerful and "spiritual" experiences, but only for people who are both extremely skilled meditators (which is not realistic to expect even 1% of the users of psychedelics to accomplish) and only while meditating (with psychedelics you can see/hear/taste/feel/experience the environment around you, not just the environment of your mind like with meditation).
Psychedelics should certainly be handled with extreme care (yet there's the paradox that being overly anxious/nervous about the experience may cause a bad experience), no doubt about it.
One of the cardinal rules of psychedelic use is to never do it alone though, his near-death experience in Nepal was due to breaking that rule. Being together with someone else isn't a guarantee of not having a bad trip/experience, but it's a good way to prevent putting yourself in dangerous situations like he did.