Now for the other union. The first one sees God as infinitely lovable and beautiful; its aim is the contemplation of his attributes and perfections. The second union sees him as the creator, conserver, governor, redeemer, glorifier and vivifier of the whole world.
At certain moments, the spirit of the Lord will move and lead you towards this second union and you have to cooperate. He will be presented to you as the Lord, king and governor of the world, the Lord God of hosts, and wil take you to objects resembling this presence. Since the first union is not strengthened or prefected or completed except in the second, you need to start by this.
Letter to Juana Gratia (1857)