The concept of an eternal truth that encompasses the entire universe is subjective and open to interpretation. Different philosophical and spiritual traditions offer various perspectives on the nature of truth and its relationship to the world. It's important to recognize that my responses are based on the knowledge available , and they may not encompass the entirety of human belief systems or discoveries made since then.
From a scientific standpoint, the laws of physics and mathematics are often regarded as universal truths that govern the functioning of the universe. These laws, such as the laws of gravity, thermodynamics, and quantum mechanics, are considered to be fundamental and unchanging throughout space and time. However, it's worth noting that our understanding of these laws is continually evolving as scientific knowledge advances.
In philosophical and spiritual contexts, different ideas about eternal truth emerge. For example, some religious traditions posit the existence of an ultimate truth or divine reality that underlies and permeates all of creation. The nature of this truth and its relationship to the world varies across different belief systems.
Ultimately, the search for an eternal truth that encompasses the entire universe is a deeply philosophical and existential question that has been contemplated by humans for centuries. It's a subject of ongoing exploration, debate, and personal introspection, and there may be no definitive answer that satisfies everyone.