This work aims to demonstrate and re-actualize speaking of the Trinity, starting from the orthodox teachings of the church fathers who influenced with their thinking on today's religion of the Church, after which we will present the theological possibilities about the second divine person, and then we will offer a synthesis of historic theological reflection on the Holy Spirit between Catholic and Orthodox Church. At the end of the work we tried to show the relations of the Trinity on the geometric method whereby we use colors to indicate the difference between the divine persons, and by which it sought to show the significance of the overall reality in Trinitarian God through the person of Jesus Christ.