What does 1 Peter 4:2 mean?

This concludes a thought begun in verse 1. Peter has said that Christians who have suffered in their bodies have ceased from sin. This is not intended to mean that Christians who have suffered, or who are willing to experience persecution, have achieved sinless perfection. We may still make sinful choices. What has changed is the direction of life for Christians who have physically suffered for Christ. Or, for those who have learned to expect persecution as part of our purpose here on earth. Such Christians have chosen the path leading away from indulging in sin as a lifestyle.

It's a question of our reason for getting out of bed in the morning. What drives us? Christians who are prepared to endure struggles for Christ are motivated to do the will of God, even if it hurts. Otherwise, we would use up our lives chasing the fulfillment of our "human passions;" we would live to find pleasure, material possessions, and or status and significance in the eyes of other people (1 John 2:16).