+**Da1** denotes the fundamental, an initial point in a conceptual framework or numerical sequence. It acts as the [Origin](/wiki/Origin), setting the stage for all subsequent elements and serving as a foundational [Unit](/wiki/Unit) from which complexity emerges.
+## See also
+- [Beginning](/wiki/Beginning)
+- [First Principle](/wiki/First_Principle)
+- [Base](/wiki/Base)
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