This first lesson introduces you to the concept of discipleship. It's not about being nice, or good. It's not about salvation. It's about being shepherded and guided by the master. It's about being an apprentice.
From Jesus' perspective, we are all part of God's household business. We start out as apprentices, learning from the master, who is Jesus. Jesus is the perfect craftsman in God's workshop - the Michael Jordan of God's business. We volunteer to become a part of the workshop and serve with the master. And that's how we learn ... by watching him, listening to him, and by starting to do our chores in the workshop. As we develop, he gives us increasing responsibility.
The life of a disciple is simply being a spiritual apprentice under Jesus' tutelage. It's not a digital thing, where one is either "in" or "out" of a club of saved people ... it's more like a school for those getting on the job training.
At the end of the class we are introduced to the nature of Luke's writings and Luke himself. This offers us a good perspective on Jesus and his work, so that we can vicariously join Jesus' original disciples and walk with them (and Jesus), and learn as they did.