@Osiris This is what happens when the supporting foundation of Tradition is no longer present in the modern world. What this guy probably experienced was a depersonalization accompanied with a partial spiritual awakening that led him to have some sort of a messiah complex. He went from living in the egoic day to day to experiencing something that is beyond body & mind. His whole world probably got rocked and he feels the need to share his enlightenment with the world.
I've seen this happen to a friend who took a heroic dose of shrooms and I've had it happen to me (albeit much milder and tamer than this) when I got back from a meditation retreat. What the guy experienced was probably one of the first spiritual humps in buddhism (Arising and Passing away + Dissolution stages of insight) and is now in Dark Night territory. The guy is unable to integrate his insight with his direct conscious day to day experience.
Normally, spiritual experiences like this would be under the guide and direction of a traditional structure, or even a guru, that helps the student integrate this experience. But since we live in the modern world, he has to fend for himself, trying to make sense of his detached personal experience while still trying to live as an integrated person. Most people have actual mental breakdowns because of this.
But the real takeaway here is in the comments where the vast majority of people have relegated his experience as a bout of insanity and inebriation & them shoehorning him into the category of 'the other' so that they don't have to think about anything that he says.
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