The Fullness Of The Holy Spirit Overflows Into Marriages And Families - It's Not A Christian Problem! It's A Human Problem! The Fullness of the Holy Spirit is experienced in the full union of two people in marriage and families. The fullness of the spirit occurs when the mind of God is unified with the body - and then the Holy Spirit gives the fullness of His divine, merciful presence. When you experience this kind of union in your marriage - it's almost impossible to stay in a marriage and build a family.