In the most abstract, two Euclidean points are never postulated to overlap each other;  such coincidence simply not permitted.  Equally so in physics, material objects may not occupy the same space at the same time, in principle.
    In contrast, Fundamental Beings may be coincident to each other, the prospects of which are imminent because the probability of occurrence of any one is unity (P=1.0).  This is acceptable, since Fundamental Being is empty space, whose attributes measure zero, thus the sum total of many empty spaces occupying a common location would not in any way alter any measure of attributes of Fundamental Being at this location at any given moment.  Mathematically we are saying that the sum behavior of any or all Fundamental Beings is invariant.
    In respect to surfaces as form, unlike material form, such as two sheets of paper, which may not pass through each other by coinciding along a line of intersection between them, surfaces as form, may.
    In the case of paper, the structure of each impedes the passing of the other.  In the case of form, there is no structure which might do this;  the two surfaces able to slide through each other as though the other is not there.
    Only if they meet by bulging together, may an interaction occur between them.
    Within a dense field of surfaces, such bulging contributes to the transmission of simple field waves, representative of both neutrinos and photons.
    In each case, both move in a rectilinear fashion, providing the field is randomly organized, viz., the surfaces are randomly oriented in the field.
    Notably, such behavior causes what is called the aberration of starlight.
    In the event a simple wave enters the region of the field that is arranged radially, which can occur merely through happenstance, as the case may be, there is an enhanced chance that this wave, which normally follows a straight path, may begin to follow a spiral path.
    Further evaluation of this behavior leads to the establishment of a permanent field particle called a a spiral configuration which produces the forces of magnetism and charge, as well as nuclear-gravitational forces.
    Once established, the spiral configuration maintains an orientation and spin direction commensurate to a quantum chromodynamic scheme, whose orientation is relative to the propensity of orientations of all such configurations, as well as others, within this region of the field.
    Two such configurations may combine into a singular configuration called a DION.   A DION may combine with another spiral configuration, producing a TRION. TRIONS are equivalent to QUARKS.