Hebrews 6:1 Therefore let us leave the elementary teachings about Christ and go on to maturity, not laying again the foundation of repentance from acts that lead to death, and of faith in God, 2 instruction about baptisms, the laying on of hands, the resurrection of the dead, and eternal judgment.
We lay hands on a person and pray when we recognize or initiate a person into special service. The apostles prayed and laid hands on the men placed into service to take care of feeding widows (Acts 6:1-6). The local church prophets and teachers laid hands on two apostles, prayed for them and sent them off to take the gospel to people who had never heard in order to fulfill the command of Jesus to go and make disciples of all nations (Acts 13:1-3; Matthew 28:19-20). We are to practice this in the local church when we recognize or initiate people into special areas of service.
We are also given the example by Jesus of laying hands on children and blessing them (Matthew 19:13-15; Mark 10:13-16). Every family should follow this practice. Parents should be laying hands on their children to bless them. This may be the Aaronic Blessing of Numbers 6:22-27 or another blessing of which there are many in the Word of God (Hebrews 13:20-21; 2 Corinthians 13:14). God will fulfill the blessing in our children's lives (Numbers 6:27; 2 Thessalonians 1:11).
We are to lay hands on people to gift people for ministry in the local church. This is to be done by the elders of a local church (1 Timothy 4:14; 2 Timothy 1:6)
Laying hands on a person and praying is a way to bring healing to a sick person (Mark 1:41; 6:5; Acts 9:12, 17-18; 28:8).
Even though we may not understand how the laying on of hands works, we are to practice it. We drive a car even if we don't know how it works. We use electricity by turning on a switch even if we can't explain all that happens. Let's practice the word of God and experience God's power even if we don't know how it works. (Again I ask you to read the scripture referenced in this short devotional.)