Modern physics has long assumed an equal and symmetric status between electric fields and magnetic fields, and has carried out theoretical deductions and experimental searches for magnetic monopoles for decades without obtaining any valid observational evidence. The root cause lies in the misalignment of cognition regarding the fundamental hierarchy of physical fields. Based on the theory of light primacy and the self-locking confinement structure of energy, this paper clarifies that the universe possesses only three primary fundamental interaction fields: the gravitational field, the strong interaction field, and the electrostatic field. The magnetic field is merely a secondary vortex field derived from the motion of electric charges rather than a fundamental interaction, and there is no symmetric equivalent relationship between them. This study clarifies that all fundamental interactions are attached to matter. Mass serves as the field source for gravitation and the strong force, while electric charges give rise to electrostatic effects. Positive and negative charges originate from two opposite three-dimensional circulation configurations of confined light energy inside the microcosmic cavities of particles, which constitute an essential polarization condition for the formation of macroscopic material structures. All primary fields obey the inverse-square law of distance attenuation. The strong interaction additionally carries an exponential attenuation factor, restricting its effective range strictly to the nuclear scale. The action of all primary fields propagates instantaneously across the entire field domain without any transmission medium or exchange particles. Since the magnetic field is inherently a closed circulation structure with no independent field source and entirely dependent on the motion of electric charges, the existence of magnetic monopoles is ruled out by fundamental physical structural axioms. The century-long search for magnetic monopoles represents a directional theoretical misunderstanding that confuses secondary derived effects with fundamental physical fields. The present work systematically clarifies the hierarchy, origin, attenuation boundary and generation mechanism of all field interactions, corrects the basic deviation of the classical electromagnetic symmetry hypothesis, and establishes the underlying logic for the unification of the three fundamental forces.
Jiaqing Yan (Wed,) studied this question.