Most of us think of power when we think about the baptism of/in the spirit. We immediately think of praying in tongues and power to do miracles. While this is a byproduct of being baptized in the spirit there is another reason for the baptism. The main reason God immerses you in his spirit is to purify, cleanse and sanctify you so he can live in you and make you his eternal child. The baptism of the spirit is the adoption process we go through to be changed into righteous and eternal children of God.