The major purpose of us coming to this world is to glorify God and teach people who doesn't believe in Him that He is the true God. Human beings were created in God's image and given the responsibility to reflect His character through love, righteousness, and obedience. Our lives find true meaning when we develop a relationship with God and serve Him faithfully.
The Bible also teaches that we exist to love and serve others. By showing compassion, kindness, and sharing God's truth, we fulfill part of His purpose for our lives. We also come to this life, for us to prepare ourselves for eternal life in heaven.