I am born again of water and the Spirit

John 3: 5 Jesus answered, “Very truly I tell you, no one can enter the kingdom of God unless they are born of water and the Spirit. 6 Flesh gives birth to flesh, but the Spirit gives birth to spirit. 7 You should not be surprised at my saying, ‘You must be born again.’ 8 The wind blows wherever it pleases. You hear its sound, but you cannot tell where it comes from or where it is going. So it is with everyone born of the Spirit.”

A lot of man on the earth might be surprised at reborn. As a child is given birth to, it could not enter its Mom’s womb and be born again any more. Because that is against nature which Created by God. I never see this happen, you either. How come it occurs? What does Jesus teach to me in John 5-8 by conversation with Nicodemus?

6 Flesh gives birth to flesh, but the Spirit gives birth to spirit. 7 You should not be surprised at my saying, ‘You must be born again.’ 8 The wind blows wherever it pleases. You hear its sound, but you cannot tell where it comes from or where it is going. So it is with everyone born of the Spirit.”
The wind blows wherever it pleases, I can not hear its sound, nor tell where it comes from or where it is going, the Holy Spirit doing similar work, he reveals Jesus to man, and when the man’s soul is touched by the work of Holy Spirit, he will see Jesus, and faith in love of God through Jesus will be given as a free gift to that man, and he will be born again by the work of the Holy Spirit. The work of Spirit includes two, the law given through Moses, and the blood of Jesus. That man will have a new life by dwelling-in of Jesus. He will walk in the work of the Holy Spirit.

Acts 15: 8 God, who knows the heart, showed that he accepted them by giving the Holy Spirit to them, just as he did to us.