Hmm, not very scientific or New Testament...
However theologically, there is regeneration:
John Murray (1937-1966)(1977) explains that the Holy Spirit ‘summons men into union and fellowship with his Son so that, united to him in whom all spiritual blessings are treasured, they come to possess Christ and all that belongs to him in his capacity as Saviour and Redeemer.’[1]
Regeneration[2] takes place which is a powerful change in the human being via the Holy Spirit,[3] which transforms one corrupt and in sin in opposition to God,[4] to one pleasing to God and trusting in God.
See: John 3, Titus 3, 1 Peter 1
KIERKEGAARD, SOREN (1848-1849)(1961) Christian Discourses & The Lilies of the Field and The Birds of the Air & Three Discourses at The Communion on Fridays, Translated by Walter Lowrie, New York, Oxford University Press.
MURRAY, JOHN (1937-1966)(1977) Collected Writings of John Murray, Vol. 2: Select Lectures in Systematic Theology, Edinburgh, The Banner of Truth Trust.