When he saw the crowds, he went up the mountain, and after he had sat down, his disciples came to him. He began to teach them, saying: "Blessed are the poor in spirit, for theirs is the kingdom of heaven. Blessed are they who mourn, for they will be comforted. Blessed are the meek, for they will inherit the land. Blessed are they who hunger and thirst for righteousness, for they will be satisfied. Blessed are the merciful, for they will be shown mercy. Blessed are the clean of heart, for they will see God. Blessed are the peacemakers, for they will be called children of God. Blessed are they who are persecuted for the sake of righteousness, for theirs is the kingdom of heaven. Blessed are you when they insult you and persecute you and utter every kind of evil against you (falsely) because of me. Rejoice and be glad, for your reward will be great in heaven. (Mt 5:1-12)
Holiness is a vocation. The whole of creation is called to be holy. Our belief is that God has created us to experience him in this world of His and communicate Him to this world. God is present in this world. So we are called to experience God and express God to one another.
We are not called to be gods. This would be going against our vocation. We could never be gods. Our holiness consists in living the godly life in this world. Living out our vocations consists in: being poor in spirit (not attached to wealth and material things), being meek, being meek and merciful, being peace makers etc.
Holiness also consists in accepting suffering, persecution, false accusations, insults etc. This is the prophetic way of being godly. Holiness is not aloofness or being separated from the others. Rather it is in involving with the others and being instruments and signs of God to one another.
