If you’re not sure about it then you haven’t meditated on a regular basis. The only hallucinatory drug I’ve ever used was dropping acid a few times in the late 1970s. The experience I referred to occurred well over a decade later. At that time, I had a few hours free after work every day so had time to practice TM- Transcendental Meditation- developed by Maharishi Mahesh Yogi and made popular in the US in the 1960s. It’s the standard slow breathing technique to quit the mind. The twist on it was to breathe 4 times then repeat that rather than simply counting breaths linearly.

I’ll try to describe the experience better: imagine yourself in a place with little or no light (eyes closed is all that’s needed). Look ‘downward’ and there is an elongated oval, similar to the long summer watermelons, and it is in from of you, staying in place. But its entire surface is flowing with ‘streamers’ of various colors, mostly shades of green. The end of each ‘streamer’ is truncated into a flat but bending surface. On every ‘flat’ surface a personality, each different from the other. Those streamers are in a constant flow on and throughout the shape you’re seeing and each is an entire human life and its emotions, birth, to death, and each enfolds again into the whole as others arise.

That is what I saw and knew to be the universe from outside of it and it wasn’t due to drug usage. I could have explained it more in my other comment but failed to do that and hope you’ll understand it more now.

Thanks for your reply and question.