When this occurs smaller energies inside of each called quarks cause a new particle to be formed. In other words light can change into matter and back into light again. The messenger particle which is light can become a person and then change back into light. This is not something for your to believe. This is reality.
Light can change into matter and back into light again.
Waves moving backward and forward. The waves coming from us interact with the waves coming from above. As a result each individually charged particle including the particles in you , instantaneously become aware of their position in relation to all other charged particles in the universe. Waves traveling back and forth provide feedback which makes every particle an integrated part of the whole electromagnetic web. In your brain is something called Arachnoid.