It is the baptism of the Holy Spirit that makes the ministry of the Holy Spirit real and valid in the life of a believer. This work of the Holy Spirit is done at regeneration, and praise God we do not have to ask for it, it is given automatically. We must understand that we can live in the presence of God unless we are cleansed of our sin, and we put on the righteousness of Jesus Christ. That cleansing and righteousness is placed upon us by the work of the Holy Spirit when he comes upon us. Baptism is the word that is chosen to picture that work, and reminds us that we are cleansed positionally, and the indwelling presence of the Holy Spirit that comes with that baptism, is the enablement to learn to overcome sin in our lives. We must realize that all we do as believers is done in the presence of God, may we learn to live in that presence on a daily basis.