How to envision quantum fields in physics?
The particle is a body of information being acted upon by an informational field that is forming and determining the particle, in shape and direction. — Pop
The particle is just an almost point-like structure which moves on ALL trajectories through spacetime (also backwards in time!) simultaneously. As such it contains no information. The only information is contained in their respective probability amplitudes. The wavefunction is inferred from these paths (path integral formalism(. The only usefull information to people lies in the collective forms of interacting particles (through gauge fields). We see these. They can be usefull to us. A quantum field can be pictured:
For one particle as all paths in spacetime of an almost pointlike classical particle interacing with fluctuations of the vacuum fields of ALL elementary particles (quarks, leptons, or even more fundamenta ones. and vacuum gauge fields, like the photon, gluons and gravitons).
For more particles the situation is the same but the particles interact on top with one another and excitations (creation and destruction operators) of fields can cause more or less particle to fly around.
A field can be seen as an operator valued distribution. The operators are creation and destruction operators. With, say, that one particle such a distribution is associated. Corresponding to all these trajectories and probability amplitudes.