I think of it like this: I am a prism designed to reflect God's light. All of my sin nature is like smudges that obscure the light.
As I practice truly seeing God more and more--being in His Presence, being mindful of Him, facing towards Him spiritually--His light washes off the smudges gradually, so that more and more of His light is reflected through me to others. The more I see Him, the more I begin to reflect Him.
His light is all that is good: the fruit of the Spirit (love, joy, peace, patience, kindness, generosity, faithfulness, gentleness, and self-control).
In dancing contests, dancers are graded not only on their technical expertise, but also on their expression of the heart of dancing. If they are just mechanically going through the motions, it does not have the same effect on the audience as when they are throwing their whole selves into the dance.
Our lives are like that too. If we are doing our best to follow a set of rules like the Ten Commandments, technically that is not incorrect; but it cannot compare with the spark of chemistry, the sense of life, in an dancing relationship.
Serving Christ is more than following His rules; it is being in tune with His heart, and "dancing" as He leads. It is a relationship that is alive. We will make some missteps, but with our heart in the dance following His lead, Jesus will say, "Well done."