The phrase "to rule the universe" means having total control and power over everything in existence, just like being in charge of everything that happens in the whole universe. Full definition
For her, non-objective painting was «spirituality made visible... alive and organic with the cosmic order which rules the universe.» (artsy.net)
Like a prism decomposes light into the many colors of the visible spectrum, this poem uses language to reveal the phenomena ruling the universe as an explorable array. (icabaltimore.org)
Imagine a God who rules the universe, yet cares for us as we are. (religion-online.org)