The Holy Trinity, Father, Son, and Holy Spirit, is one God but three persons. How can one God be three persons? Too often we ask the wrong question. Rather, we should ask, what does the dogma of the Trinity say about our purpose in life?
Think back to the best times of your life, those experiences you always carry with you. These are the memories you cherish. Were there other people there with you? Now think back to the worst times, those days when it seemed like the whole world was against you. Were you alone?
We are made in the image and likeness of God, but rather than try to determine what this says about God, let us think for a moment about what it says about us.
The Holy Trinity is one of our greatest mysteries. This does not mean that we know nothing about the nature of God. It does mean that we can know only what God has revealed to us. And He has revealed to us that our He is made up of three blessed persons, Father, Son and Holy Spirit.
Our God is a community, and as we are made in His likeness, we are a people of community. We are meant to share our lives with each other and work for the common good, building up the Body of Christ, the Church.
Jesus tells us that the first and greatest commandment is to love God with all our heart. But the second is like it, we are to love one another as we love ourselves.
The bookstores are full of self improvement books that focus on what you can do for yourself. But if you want true self improvement, then ask what you can do for someone else.