God is Spirit, and God is Love. Since love seeks to go beyond the self, the Father is constantly pouring Himself into the Son. As part of this, He created that which is the opposite of Himself - the material universe, as a gift to the Son that the Son might express Himself through. In a similar way that you might give paints & canvas to an artist, so the material universe allows the Son to express Himself in a manner that is beyond His natural state. It is the Son who has ordered the stars, caused galaxies to come & go. it is He who supervises the rising & falling of suns & planets, and the creation of humanity.
In the fullness of time, the Son emptied Himself to take on the form of creation itself, raising creation to a new status under His universal Lordship. This new Creation is being returned to the Father, as resiprocation of the Father’s gift. Thus, we, mere creatures as we are, are caught up in the dynamic drama of the Holy Trinity, being at Oneness with the Son through His Love, to the Glory of the Father.
So, the Universe exists as an act of love by the Father, has been redeemed as an act of love by the Son. And the name of this love is the Holy Spirit.