This practice, known as the “laying on of hands,” is a form of worship during which numerous believers come around an individual and offer up prayers for him or her. The significance is both symbolic and literal, as the Holy Spirit and blessing are sought for the subject of the group prayer.
Paul said, ‘John’s baptism was a baptism of repentance. He told the people to believe in the one coming after him, that is, in Jesus.’ On hearing this, they were baptized into the name of the Lord Jesus. When Paul placed his hands on them, the Holy Spirit came on them, and they spoke in tongues and prophesied” (Acts 19:4-6).
“While Peter was still speaking these words, the Holy Spirit came on all who heard the message. The circumcised believers who had come with Peter were astonished that the gift of the Holy Spirit had been poured out even on the Gentiles. For they heard them speaking in tongues and praising God” (Acts 10:44-46).