• It is an "instantaneous step-function" change -- not a gradual process.Perhaps 'phase shift' might fit as a better way of expressing the change which happens with Conversion/Salvation. After all, we humans have been imbued with something not found in other creatures of God's Creating; we have a spirit, into which God's level of Life through the Holy Spirit enters into the Created, living thing, accomplishing what Jesus said He came to accomplish, give us Life more abundantly.• It relies on no known "natural" process or law; it is fully "miraculous" and totally beyond scientific explanation.
• It is attributable only to a Divine and miraculous act of God through his Son, Jesus Christ.
• It is also the result of conscious acts of decision of the human will: conscious and deliberate rejection of past sins, and acceptance of the almighty, saving Grace of Almighty God.
•[...I expect that others (who have personal experience of salvation) can and may add several further insights to this list...]
God is not willing that any be lost, but some will by their choice of belief or non-belief not allow this 'phase shift' to happen to them and will be lost to the life which is coming in greater fullness, greater abundance.
This phase shift via individual choice should not startle modern humans since Physics has shown that even the observer effects the outcome merely by observing.