The movement of charged particles generates a magnetic force due to the fundamental principles of electromagnetism, which are closely linked to relativity rather than quantum mechanics. While the relationship between electricity and magnetism is well-established, the underlying reasons for these phenomena remain complex and often unexplained. Quantum electrodynamics (QED) provides a framework for understanding interactions between light and matter, but it does not fully address the "why" behind magnetic fields created by moving charges. The discussion emphasizes that while mathematical models can describe these interactions, the deeper reasons for their existence are still a mystery. Ultimately, the nature of charge and its effects are observed phenomena that we can model, but the fundamental questions often lead to unsatisfactory answers.