the question was mainly to show how the surface is important in a philosophical view and we can discover many fantastic facts from it .Also we can use it for illusion, to show a different outside from the inside. this is done by surface modification by radiation for example. in materials it is important sometimes to have bulk and surface with opposite properties. but in a human scale this is not good, some kind of cheating.
Your view point is so appreciated, no one try to understand what I meant, but you do, So Thank you.