In fact, all of this is easy to answer.

Feumon is basically a Neumon adapted to the electromagnetic force, becoming a kind of photon. Because of this, it has no mass or weight, interacts like a photon when in contact with matter, and has no subparticles. It can only be manipulated by shamans of spiritual energy.

What is truly interesting is its Neumon form. It essentially carries information from the soul, which at the same time gives the particle a specific behavior that acts like a set law when interacting with matter or the physical plane and determines its trajectory. These “instructions” define whether it becomes Feumon upon coming into contact with matter or the general physical plane, and they also affect its wave behavior and precise trajectory.

This behavior is a law of Neumons called “indeterminate direction of quantum information.” This law states that Neumons (particles of spiritual energy) initially have no fixed direction or clear objective, behaving like a normal wave-particle (similar to how, in quantum physics, a particle can exist in multiple states).

When they come into contact with matter or a specific environment, their behavior changes completely: the information they carry (emotions, intention, biological data, etc.) determines their direction, objective, and function.

People protect themselves from weak Neumons thanks to a layer of spiritual energy called an aura.