The Basis of Christian Unity

Unity is being discussed in our society these days, but what is unity? The Bible explains Christian unity in different ways: not only is it compared to the Trinity, but it also explains it very pragmatically. So where do theology and practicality meet? First, we have to understand that our knowledge of God should have a direct impact on how we live our lives. But does that mean that throughout the day, every day, we need to make "Christian" decisions? Or does it mean something else?