People can be changed so thoroughly that what you now are bares no resemblance to what you were.
I have experienced this myself and seen it happen in others.
There is a call in Romans to “Be transformed by the renewing of your mind.”
Renew, to make new, a new, young mind.
Hey, who wouldn’t want this?
HOW are you changed? You interrogate your thoughts. Is this true? Is this the way God wants me to think? Am I thinking in the way Jesus especially commanded me not to think?–Am I worrying, being negative, unforgiving, fearful?Am I not forgiving aught against any?
We are changed as we think the thoughts God wants us to think–thoughts of gratitude, thoughts of love and positivity, and let go of the negativity which weighs us down!