There are many many different views on this. This has bothered me in the past and is seriously a heaven and hell issue. I am sure everyone would want to know the truth about what it means to be born again. I don't know about this present evil world but I do NOT want to go to hell. I want the truth. I don't care about my own feelings or opinion. I want to know if I am in error and am headed to hell or not. My sister once said. "Well on judgement day, we will know the truth then." Well I hate to say this but on the day of judgement, It's toooooo late then. It is alllll over. Who in their right mind would want to wait until then to see if such and such doctrine is correct or not? Why not now??? Why can't we seek for the truth now and avoid hell?
The phrase, "born again" is a phrase that Jesus used when speaking to Nicodemus who was a Jew. The Jews were the people of God, they were the seed of Abraham. God had made several promises to Abraham and his "seed." The Jews believed that being the physical offspring of Abraham, through physical birth they were entitled to those promises because they were his "seed". Jesus uses the metaphor of "born again" to show Nicodemus that his physical birth as a Jew, as the seed of Abraham, is not sufficient to gain him entrance into the Kingdom. That physical birth as the seed of Abraham was not sufficient, he'll need a new birth, metaphorically.