In this verse it is clearly mentioned that the Supreme Personality of Godhead exerts His different energies in the creation; it is not that He Himself is transformed into material creations. He expands Himself by His different energies, as well as by His plenary portions. In a corner of the spiritual sky of brahmajyoti a spiritual cloud sometimes appears, and the covered portion is called the mahat-tattva. The Lord then, by His plenary portion as Maha-Visnu, lies down within the water of the mahat-tattva, and the water is called the Causal Ocean (Karana-jala). While Maha-Visnu sleeps within the Causal Ocean, innumerable universes are generated along with His breathing. These universes are floating, and they are scattered all over the Causal Ocean. They stay only during the breathing period of Maha-Visnu. In each and every universal globe, the same Maha-Visnu enters again as Garbhodakasayi Visnu and lies there on the serpentlike Sesa incarnation. From His navel sprouts a lotus stem, and on the lotus, Brahma, the lord of the universe, is born. Brahma creates all forms of living beings of different shapes in terms of different desires within the universe. He also creates the sun, moon and other demigods.