Aztec Metaphysics articulates the cosmos as one living, dynamic, and changing reality. The Aztecs did not conceive the world as composed of inert matter through external forces, nor as the creation of an external god, but rather, they held that all things are aspects or manifestations of a single, sacred process called teotl. Most of the Nahuatl-language sources and colonial records are reconstructed nicely by a philosopher by the name of James Maffie. In his reconstruction, “Aztec Philosophy: Understanding a World in Motion”, he describes teotl as “a continually self-generating, self-moving, and self-transforming sacred power” (Maffie 2015). It is not a being or a substance in the sense that we may often think, but rather the process of being itself. They understood reality not as a world of things but as a world in motion. Hence, Maffie characterizes Aztec metaphysics as a form of process monism or dialectical monism. In short, their argument is that reality is ultimately one dynamic process, whose differentiations are temporary expressions of teotl.
The Aztecs did not believe that tetol had any divine relation or was created by a god. They understood teotl as reality itself, and everything, even gods, were mere expressions of it. Teotl manifests as the oscillation between complementary forces, for example, light and dark, life and death, chaos and order, each of which depends on the other to sustain the balance of the cosmos. They did not think of these “forces” as opposing, in fact, they are continuous. This conception is in contrast with the Western idea of being as fixed essence with a metaphysics of becoming. What something is, is inseparable from what it does and how it participates in the motion of the cosmos. The world is made up of events that are temporary expressions of teotl’s ever changing identity.
Thus, Aztec metaphysics rejects both dualism and substance ontology. There is no set of static substances with fixed essences. Instead, the world is nondual and dynamic: all differences are real but relational, not absolute. This can be seen in contrast with many metaphysical views that are more modern, such as the theory of relativity or any argument for absolute space. Maffie describes the Aztec world picture as “neither theocentric nor anthropocentric, but cosmocentric” (Maffie 2015), meaning everything that exists is part of the living cosmos’s act of of self-creation.
The Argument for Teotl
The Aztec argument for this metaphysiccal view arises from empirical observation and cultural beleifs. Unlike Western metaphysics, which often proceeds from abstract deduction, Aztec metaphysics was rooted in lived experience of the natural and social worlds. The Nahuas, which included all the people in Central Mexico at that time, saw in the cycles of nature—day and night, seasons, birth and death—the signature of teotl’s rhythm. From these observations, they inferred a principle of metaphysical continuity and balance governing all phenomena.
The Nahuas observed that all things are subject to transformation. Mountains erode, bodies decay, stars move, and even gods die and are reborn. The cosmos itself, in Aztec cosmology, undergoes successive destructions and renewals, the most recent being the Fifth Sun, derived from their Myth of the Five Suns. From this, the Aztecs inferred that change is not accidental but essential to reality. As Maffie explains, “the Nahuas regarded motion, change, and transformation as the most fundamental features of reality” (Maffie, 2015). Since change is universal and inevitable, it must arise from the very nature of what is real. Thus, they concluded that what exists is not a stable being but dynamic.
Where ancient philosophers often interpreted change as a defect in the visible world and sought a reality made of unchanging being, the Nahuas embraced change as sacred. The constantly changing world is not a sign of imperfection but something of necessity. In other words, what Western metaphysics treated as an ontological problem (the tension between permanence and change), Aztec metaphysics treated as the very essence of reality.
The Florentine Codex outlines how the Aztecs thought about the idea of complementary opposition. It describes creation as emerging through “the mingling and opposing of the dual gods, Ometecuhtli and Omecihuatl,” whose union births all other gods and beings (Book 6, Florentine Codex). From them, came all that exists, it would be considered an act of complementary opposites coming together to as aspects of one source. Maffie refers to this as dialectical polar monism, in which “teotl differentiates itself into mutually arising polarities, each defining and sustaining the other” (Maffie 2015). The apparent dualities of life express a deeper metaphysical view of reality: a single sacred “substance” (teotl) unfolding through tension and balance.
Self-Generation
The Nahuas also reasoned that if all things transform but nothing arises from absolute nothingness, then reality must be self-generating. The Codex Rios recounts how each cosmic age (also refered to as suns) is born from the death of its predecessor. This cyclical pattern shows that the cosmos recreates itself through its own makings. Nowhere in these accounts is there an external creator standing apart from creation; rather, the gods themselves die to bring forth the world anew.
This reasoning underlies the Aztec rejection of dualistic creationism. If all existence depends upon cyclical transformation, then the cosmos cannot have a first cause external to itself. Rather, it is autopoietic—self-caused, self-sustaining. The Nahuas expressed this idea through ritual as much as through myth. The New Fire Ceremony, performed every 52 years, symbolized the renewal of the sun and the reignition of the cosmos. The ceremony reaffirmed the Aztec belief that the universe continually regenerates through its own cycles of death and rebirth, without any external creator.
Implications
With this framework, the Aztecs concluded that the cosmos is sacred motion, and that human beings must live in accordance with its rhythm. In book 6 of the Florentine Codex, it states that “the earth is slippery, slick… if you walk carelessly, you will fall”. The metaphor of the “slippery earth” captures the Aztec’s metaphysical view: reality is unstable, perpetually in motion, and thus requires balance. In this sense, knowledge also reflects this metaphysical view. Maffie interprets this as a kind of participatory epistemology: “To know truly is to live well, to live rootedly in the flow of teotl” (Maffie 2015). Thus, Aztec metaphysics, ethics, and theology form a coherent system grounded in the same principle: the universe lives through reciprocal transformation. Although not written about a lot, the Aztecs believed this worldview extends to space and time. They regarded time not as linear progression but cyclical as well, each day, year, and age repeating teotl’s motion.
Maffie summarizes the overall argument quite well, he says that the Nahuas invite us to imagine a cosmos without external creator or inert matter, a sacred motion that eternally renews itself, where the divine and the natural, life and death, are but two faces of one teotl’s ceaseless dance (Maffie 2015).
Glossary
- Aztec Metaphysics: The cosmos is one living, dynamic, and ever-changing reality; not created by an external god but self-transforming.
- Codex Rios: Records the succession of cosmic suns, each reborn from the death of its predecessor.
- Complementary Forces: Opposites like life/death, light/dark, and order/chaos are interdependent and sustain cosmic balance.
- Cyclical: The Aztecs viewed time and existence as repeating patterns of creation and renewal; every era, season, and life echoes teotl’s continuous motion
- Dialectical Polar Monism: One reality expressing itself through interdependent opposites like life/death or light/dark.
- Florentine Codex: Primary source that describes creation through the dual gods Ometecuhtli and Omecihuatl, symbolizing unity through opposition.
- Myth of the Five Suns: Each cosmic age ends and regenerates from the last, showing reality’s essential self-renewal. Happens five times and we are living in the 5th.
- New Fire Ceremony: 52-year ritual renewing the cosmos and symbolizing teotl’s self-generation.
- Process Monism: The view that all reality is one ongoing sacred process, not static substance.
- Teotl: Sacred, self-generating energy that constitutes all reality; a living process, not technically a substance.