Prayer is human communication with God. God knows our hearts, but he wants us to share our thoughts with him willingly through prayer. Speaking to God is like talking to a trusted friend or confessing to a loving parent.
Jeremiah 29:12 Then you will call upon Me and go and pray to Me, and I will listen to you.
As followers of Christ, one of our goals is to learn how to be honest with God, developing the ability to freely share our faults, desires, and concerns with him. Our God is a God that responds to needs!
1 Peter 5:7 (KJV) Casting all your care upon him; for he careth for you.