“The Trinity Of Realities is a term to describe the nature of the universe of the Bayonetta series. As its name suggests, the Trinity is composed of 3 realms that house the traits of light, darkness, and chaos respectively. Bayonetta travels through each of these realms numerous times throughout the games.
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The highest layer of the Trinity, Paradiso is home to the Laguna, or angels, and is closest to the human interpretation of heaven.
The Human World
The plane of reality in which humans live, also known as a realm of chaos before Aesir brought order to it with his rule.
The realm of darkness ruled over by the demonic Queen Sheba, Inferno is closest to the human interpretation of hell.
Acting as a parallel reality to the Human World and not necessarily a member of the Trinity. Purgatorio is a realm that is most similar to the human interpretation of purgatory, as the name suggests.” –“Trinity of Realities,” Bayonetta Wiki, December 19, 2019