We have a sense that life with God is a chore, full of rules and regulations. People in the Church are often secretly jealous of those outside the Church because they get to have all the fun. But according to Jesus, God throws the best parties. And there's more than enough room for the saints and the sinners.
We typically imagine God to be in Church, among the religious people. Or possibly in Heaven, surrounded by worshippers. But when some religious people in his day find Jesus partying with sinners and are scandalized, Jesus tells them a story about God's love for lost things. God is out there, searching restlessly until all who were lost are found!
We think of religion as a part of our lives, something we add to make the rest of our life better. But Jesus compares his new Kingdom to something so valuable it's worth our entire lives. Accepting Jesus' invitation to God's Kingdom changes how we live every aspect of our lives.