I am a member of a church that practices “Immersion Baptism” of believers. It is not a tidy event with a few drops of water on an infant who does not know what is going on. When we baptize it is a soggy messy affair. The person being baptized must be able to confess with understanding, “I believe that Jesus is the Christ, the Son of God and my Lord and Savior.” The person must really want to be immersed into Christ.
It is a reminder that being a Christian means that we totally belong to Christ. In going under the water we die to our old life and are buried with Christ and being raised up out of the water we are resurrected to a new life in Christ. Baptism is our first obedience to Jesus and it is here that we receive our gifts of the Holy Spirit to do the ministry God calls us to carry out.
Soaking wet we know that from this point on we belong to Jesus and that we can go to God in prayer and claim our baptism and forgiveness of our sins.