I love this quote from Piper’s excellent book “What Jesus demands from the World” It really captures in a nutshell what being born again is all about:
When a person is born anew and experiences repentance, his attitude about Jesus changes. Jesus himself becomes the central focus and supreme value of life. Before the new birth happens and repentance occurs, a hundred other things seem more important and more attractive: health, family, job, friends, sports, music, food, sex, hobbies, retirement. But when God gives the radical change of new birth and repentance, Jesus himself becomes our supreme treasure.His Yoke Is Easy, and His Burden Is Light
Therefore, his demand that we come to him is not burdensome. It means coming to the one who has become everything to us. Jesus did not come into the world mainly to bring a new religion or a new law. He came to offer himself for our eternal enjoyment and to do whatever he had to do—including death—to remove every obstacle to this everlasting joy in him. “These things I have spoken to you, that my joy may be in you, and that your joy may be full” (John 15:11) . . .
Make no mistake, there is a yoke and a burden when we come to Jesus (there would be no demands if this were not true), but the yoke is easy, and the burden
– John Piper, What Jesus Demands From the World, Page 44