The most fundamental change (in life) is the change called conversion. Conversion is the gradual or sudden changing from the Kingdom of Self to the Kingdom of God through the grace and power of Christ. (The soul) stands up under the pressures of life and is able to live and to live victoriously.
According to (William) James: “Conversion produces these four fruits:
1. A sense of a higher and friendly Power.
2. Charity and brotherly love.
3. A paradise of inward tranquillity.
4. Purity of life.”
and, we may add, a new sense of the value of ourselves. An inner, royal dignity comes into the human breast. The human heart has found itself and its way to live.
A man can never despise himself again, for God does not.
He is reconciled with God and hence with himself.
– E. Stanley Jones, Is the Kingdom of God Realism?, 1940.
Then one of (the Pharisees), a lawyer, asked Him a question, testing Him, and saying, “Teacher, which is the great commandment in the law?”
Jesus said to him,
‘You shall love the Lord your God with all your heart,
with all your soul,
and with all your mind.’
This is the first and great commandment.
And the second is like it:
‘You shall love your neighbor as yourself.’
On these two commandments hang all the Law and the Prophets.
Matthew 22: 35-39
And do not be conformed to this world,
but be transformed by the renewing of your mind,
that you may prove what is that good and acceptable and perfect will of God.
The Bible, New King James version