Its fascinating reading ...now taking the Vedic view from Bhagavad Gita it clearly states that 1/4 is the material kingdom with countless universes teaming with life a 3/4 is the spiritual kingdom where beings have evolved to such a high level that they no longer reincarnate in the material kingdom.
Now read about the man who lived with Extraterrestrials @
https://alien-ufo-sightings.com/2017/08/the-man-who-lived-with-extraterrestrials-for-10-days/
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Well according to him the extraterrestrial he came into contact had far more advanced technology then beings on earth