Abstract Mathematics is not just a subject, but this is the universal language that unites the human brain, artificial intelligence, and the fundamental laws of the universe. This article explores how mathematical structures govern the behavior of neural networks, both biological and artificial. It also describes how brainpage learning harnesses these structures to optimize knowledge acquisition and problem-solving. What's the difference between intelligence and reality? By examining the roles of pattern recognition, calculation and neural modulation, we reveal how mathematics functions as the bridge between intelligence and reality. From brain circuits and motor learning to deep learning algorithms and cosmic patterns, mathematics emerges as the shared syntax of cognition, computation and creation. This integrated perspective encourages a deeper understanding of how numbers shape thought, technology, and the very fabric of the universe. Article – Universal Language Connecting Brai...