"Baptism in the Holy Spirit" refers to a spiritual experience in which a believer receives the Holy Spirit in a profound way, often associated with empowerment for service and a deeper relationship with God. This experience is commonly linked to the events described in the New Testament, particularly in the book of Acts, where the apostles received the Holy Spirit at Pentecost. This baptism is distinct from water baptism, which symbolizes initiation into the Christian faith. Many Christians believe that baptism in the Holy Spirit can lead to spiritual gifts, such as speaking in tongues or prophecy, enhancing the believer's ability to serve and witness in their faith.