We exist to make much of Jesus.
As a result of our own sin, each of us was destined for an eternity apart from God. We were enslaved to our various passions, broken and without hope. However, God being rich in mercy sent His Son, Jesus. Jesus willingly came to this earth. He lived the perfect life we could not live. He died the death we deserved to die. He rose from the dead and then ascended to the right hand of God.
In turning from our sin and trusting Jesus' work we now have great hope. That is we are being restored and our passions have been transformed. Our greatest desire is to make much of Jesus, the One who has given us so much.
Therefore go and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit, and teaching them to obey everything I have commanded you. And surely I am with you always, to the very end of the age.” - Matthew 28:19-20