If it doesn't depart too much from the analogy, what is the lake (water below the surface, under the field) and what is above the field? More than what it is,

If it doesn't depart too much from the analogy, what is the lake (water below the surface, under the field) and what is above the field? More than what it is, the question is what properties does it have. Anyway the object of interest is the surface. What is the non-exceptional form of the particle, or thing that makes up the particle? The surface.