Getting baptized is a public declaration of your faith.
This symbolic act of Water Baptism tells those around you that the sins of your past have been washed clean and you are showing the whole world through your baptism that you are basing your life on Jesus Christ, the solid rock.
Going under water represents your old life, when you come out of the water represents your brand new life with Jesus Christ.
When you are in a right relationship with Jesus Christ, you can live every single day with the assurance that God is going to give you guidance for our life. He sets you free!