This study presents a new perspective on the properties of light, neutrinos, and electrons based on the concept of non-zero energy fluctuations that constantly exist in space. Traditional physics distinguishes light (photons) as massless and electrons or neutrinos as massive, but the fundamental reason why both exhibit wave-particle duality remains unresolved. By focusing on the frequency of these fluctuations, this work provides a unified interpretation of wave behavior, quantum properties, and the origin of mass. High-frequency fluctuations correspond to massless photons, medium-frequency fluctuations to nearly massless neutrinos, and low-frequency fluctuations with localized energy give rise to massive electrons and structured matter. This framework also offers a deterministic interpretation of quantum behavior, where the regularity of fluctuations determines the emergence of photons, rather than relying on probabilistic models. Future work includes identifying the threshold frequency at which light transforms into neutrinos and examining consistency with cosmic background radiation and neutrino density.