You might ask, "What's Church all about?" or "What's the point of Church?" - Good question. :)
We believe that we (the Church in general) have been given a job to do - a mission. According to Matthew, Jesus' last words on earth are our commission: "Go therefore and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit, teaching them to observe all that I have commanded you." Ultimately, this is what we're all about.
"Making disciples" is another way of saying that we're supposed to teach people about Jesus. If we do our part and teach people about Jesus, the likelihood is that they will grow to love Him and want to follow Him. They become a "disciple" of Jesus. That - in turn - causes them to want to tell others about Jesus, and so on... and so on...
This is our mission.