Paul says the Holy Spirit is a “seal” of a genuine believer (Ephesians 1:13.) The Holy Spirit fulfilled Jesus’ prophecy of sending a Comforter. However, in the South where I live the Holy Spirit has been played like a sick monster. When I returned to the church I was told I was truly saved only if “gifts” of the Spirit manifested in speaking in tongues or visions. If I didn’t experience these, then I wasn’t saved.