There is a contrasting description of the creator of the universe. In Devi Purana, it is mentioned that Devi is the creator of the universe, and everything emanates from her.
In Gita, Krishna said that he is the creator of the universe, and everything emanates from him. He also showed his Viswaroopa form to Arjuna.
So, who is the true master/creator of the universe?
If this theory is viewed from the scientific angle, Devi (or Shakti/energy) has to be the master of the universe. And all matter has evolved from her. As we know, mass evolves from energy through the
E = mc2 formula (Albert Einstein).