Particles
What physics often describes as “Particles” does not only referre to what we typically see as something with effective mass. Particles are energy packages and intermediate partitions of these. Particles can carry different modes of oszillations and resonances differently in all 3 spatial directions. Particles with 1 axis are Photons. With just a little more wobbling in second direction we come to the Neutrinos. Particles with 3 resonance axes are Leptons (e.g. electron) and the different frequency mixtures.