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Hi- Welcome and thank you for your deep thinking question.
I have been a meditating for over 30 years and it has certainly expanded my vision and consciousness way beyond what people claim drugs can do!
The main qualification for you to achieve your goal is practicing meditation at an advanced level. To do this you have to learn to be in control of your mind and senses. There are many different groups with many different approaches to this. The links below will give you a start for your explorations:
The gentleman you mentioned has probably been meditating for many years with focus and dedication. Find a meditation or yoga group that sounds good to you and get some personal instruction. Watching and reading things on the internet can only take you so far. Learn the techniques and then practicepracticepractice!
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