Holiness is the way we are when we obey the commandments of God. When we do all that God has commanded us, we will be accepted of Him. Holiness means that our life is free of sin. When someone is holy he will get himself defiled by the sinful things in the world. So, holiness could be looked up to as living a life that is not corrupted with the evil things in the world.
The commandments of God produce holiness in us. Our lives reflection the holiness of God when we keep the commandments of God. The commandments of God leads us in the path of holiness and righteousness. As we obey the doctrines of God through the commandments of God which we are given in the Bible, we because holy.
There is no beauty in sin. There is no beauty in unholy living. Anyone who practices sin cannot be holy. The sinful works of men make them very ugly. The commandments of God is something beautiful. So, there is beauty in holiness. There is no beauty in unholiness.