The Trinity is mysterious and exciting. The Trinity consist of three persons in one God. The father, the son and the Holy Spirit.
The three that make up the Trinity places significantly important roles and work hand in hand.
I also got to understand most importantly the main role of the holy Spirit in the life of believer is to witness of Jesus Christ.
Once we are saved and belong to the family of Christ, the Holy Spirit resides in us forever. Sealing us to the covenant of sonship. This is true and important for us Children of God.