“If you then, who are wicked, know how to give good gifts to your children, how much more will the Father in heaven give the holy Spirit to those who ask him?" (Luke 11:13) God has given the best gifts to humankind, other then His Son; it’s the Holy Spirit. According to the Studium Biblicum dictionary, “The greatest mystery of the New Testament was the incarnation of God’s only Son. The principal of this great event has the same thread of thought and is inseparable to the mystery of the Holy Spirit. Since the incarnation had such a close relationship with the Holy Spirit, other mysteries generated such as salvation, the Holy Church, the end of the world and the rest of God’s creations are all linked with the Holy Spirit without the slightest possibility of disconnection.” (p.1222) ”John answered them all, saying, "I am baptizing you with water, but one mightier than I is coming. I am not worthy to loosen the thongs of his sandals. He will baptize you with the holy Spirit and fire.” (Luke 3:16) Jesus answered, "Amen, amen, I say to you, no one can enter the kingdom of God without being born of water and Spirit. (John 3:5) When our hearts and souls are united with God, the Holy Spirit will be working within us: “For it will not be you who speak but the Spirit of your Father speaking through you.” (Matthew 10:20) Our earnest thankfulness to Mary our heavenly mother’s “May it be done to me according to your word”, so then Jesus had became man, and the Holy Spirit had made holy our world at the same time.