What does it mean to live under the dominion of sin?

Living under the dominion of sin refers to being enslaved to sinful desires and actions, governed by the flesh rather than by the Spirit. Romans 8:9 reminds believers that they are not in the flesh but in the Spirit. The transformation brought by the Holy Spirit signifies that true believers cannot continue in sin as a lifestyle. Instead, they are empowered to mortify the deeds of the flesh and are led by the Spirit, affirming their identity as children of God and their freedom from the oppressive guilt and fear associated with sin's dominion.