Paul tells us in Romans 11:1-2: Therefore, I urge you, brothers and sisters, in view of God’s mercy, to offer your bodies as a living sacrifice, holy and pleasing to God—this is your true and proper worship.Do not conform to the pattern of this world, but be transformed by the renewing of your mind. Then you will be able to test and approve what God’s will is—his good, pleasing and perfect will.
There is a theory that a new habit takes 21 days to make. Habits are ingrained in our minds and they're very hard to change once established. Try breaking one--like eating dessert. After some thought, it seems to me that if we took spiritual transformation seriously, the Lenten season could be the time we focus on renewing our minds and hearts by making new habits. We have 40 days; surely enough time to develop a new habit, a new way of thinking and behaving that doesn't stop after Easter.
And we all, who with unveiled faces contemplate the Lord’s glory, are being transformed into his image with ever-increasing glory, which comes from the Lord, who is the Spirit. 2 Corinthians 3:18
The fruit of the Spirit as outlined Galatians 5:22-24 may be an excellent place to start.
But the fruit of the Spirit is love, joy, peace, forbearance, kindness, goodness, faithfulness, gentleness and self-control. Against such things there is no law. Those who belong to Christ Jesus have crucified the flesh with its passions and desires.
A transformed mind and actions. A transformed life that shines brightly to lead others to the cross.