It's required to enter the kingdom, and entering the kingdom is not a thing that is reserved only for post-physical death as has been taught.
It's not "going to heaven when you die".
It's within reach, and it's on the inside.
Born again means you gotta wipe your mind of everything you've been taught or made yourself to believe, and start learning it all over from scratch, with the intent of getting down to the real nitty-gritty.
That means you gotta put everything you ever heard in church on the line.
Jesus says it has to be a birth of water and the spirit.
Water is the full range of human emotion, from sadness to joy, and the spirit is the will to utterly perish for another if necessary.
That means that if you did believe in an definitive end of the existence of the complete individual, physical, mental, and spiritual, that you would go to that destruction to spare another person. You'd "go to hell", whatever your concept of it is, in trade.
You gotta love a stranger a good bit for that one, and if
you really do, you learn something new about all that which can only come from the Father. You gotta actually play it out in your mind in prayer, not just a fleeting concept.
John 3 and 1 Peter 1 which use the term "born again" make detailed reference to this relearning from scratch, but it's missed because the only words that usually come off that page are "born again" because it's so easy for someone to "change their ways" in ANY loose interpretation of "born again" and claim they've done it. Some people are led to think that just deciding to believe Jesus was a real person and begin going to church constitutes being "born again"
Pay close attention to what Jesus says to Nicodemus all around the phrase born again. Nicodemus is a religiously learned man, and Jesus is saying in a very nice way "you don't know squat"
Pay close attention to Peter, the recalibration is
love centric, not "gematria" or "original text" or "divine the future" and so on - centric.
You gotta call BS on a lot of religious things and recalibrate on who God and Jesus are to be "born again"
They are much more awesome and present than religion depicts.
This same process of relearning from scratch is described in various other ways in the OT, " shut yourself in your house " " sat among them astonished 7 days " and " dwell by the river 'cut-off' " and so on.
A newborn infant must learn to talk, walk, and so on, having no previous knowledge of it. A child doesn't ask another person how to talk until already well versed in language, and very little at that. And I've never known a toddler to ask another person how to walk. They get those from observation and a mysterious source.
If a parent never provoked a baby to say first words, or a parent never focused on leading the toddler around by both hands, that child will
still learn to talk and walk. My guess is they'd probably even be better at it.
Borderline statement:
Think of all the things that go on in a baby's mind as much as you can. See if you can see the process from birth to a socially capable seven years old recorded by year in symbolic detail in Genesis chapter 1
"born again" -> "kingdom of heaven"
No bible college degree required. But it won't go much farther than chapter 1 without
unfakeable LOVE
And every little bit you disclose has the potential to alienate the unbeliever, or even worse
robs another person of the personal experience!