The Trinity is personal love. God within himself is an infinite self-giving love between three divine persons. This is the basis of this whole formation course and of all Catholic teaching. God wants to have a personal loving relationship with you, because he is already a personal loving relationship of persons. God unconditionally loves you because God is already infinite love. God wants to share all that he is with you because he already shares everything within the Trinity. We can sum up the three doctrines of the Trinity (person, relationship and unity) as personal loving friendship. Since God IS a personal loving friendship, he wants us to experience all that he is and so each of us are called into this personal loving friendship with him and through him with everyone else. This is THE basis for all things Catholic. Just as we have explored this incredible reality of the Trinity so too will we explore the wonderful interconnectedness of Catholic teaching in all its beauty.

"The mystery of the Most Holy Trinity is the central mystery of Christian faith and life. It is the mystery of God in himself. It is therefore the source of all the other mysteries of faith, the light that enlightens them. It is the most fundamental and essential teaching in the "hierarchy of the truths of faith". The whole history of salvation is identical with the history of the way and the means by which the one true God, Father, Son and Holy Spirit, reveals himself to men "and reconciles and unites with himself those who turn away from sin"." (CCC 234)