As we celebrate the mystery of our Triune God, three persons in one God, in one existence, we are called to meditate on this mystery. Mystery is our Father revealing Himself and not hiding Himself. The understanding of this mystery is ongoing according to the time and effort we put aside to enter this revelation of our Father, Himself.
There is another way to enter this mystery and that is to enter into a deeper relationship with our Father, Jesus, and the Holy Spirit. Entering into a deeper relationship with the Trinity will entail us entering into a deeper relationship with the people around us. The depth of the Lord will be revealed in the way we love one another. The Trinity lives in a perfect communion of love and understanding. As we strive to live in a deep relationship with one another, we enter into a communion of love with one another and this entering into a communion will enable us to experience bit by bit the love our Father has for us and His intention to draw us into that community of love that He lives with Jesus and the Holy Spirit.