Possible Modification of Standard Model Classification of Particles and Fields

Paper attempts to clarify the meanings of key concepts in cosmology, such as matter, energy, mass, and hypothetical spacetime fabric. It also presents an attempt to prove the existence of spacetime fabric as physical entity that fills the entire Universe, based on the experimental effects it manifests. Furthermore, the paper hypothesizes that matter consists of three fundamental components (states): energy, mass, and spacetime fabric, forming another triplet in the Standard Model classification.