  Starting from the motional property of functional field based on the action
principle of path integral formulation while proposing maximum coherence motion
principle and maximum locally entangled-qubits motion principle as guiding
principles, we show that such a functional field as fundamental building block
appears naturally as an entangled qubit-spinor field expressed by a locally
entangled state of qubits. Its motion brings about the appearance of Minkowski
spacetime with dimension determined by the motion-correlation $\cM_c$-spin
charge and the emergence of $\cM_c$-spin/hyperspin symmetry as fundamental
symmetry. Intrinsic $\cQ_c$-spin charge displays a periodic feature as the mod
4 qubit number, which enables us to classify all entangled qubit-spinor fields
and spacetime dimensions into four categories with respective to four
$\cQ_c$-spin charges $\cC_{\cQ_c}=0,1,2,3$. An entangled decaqubit-spinor field
in 19-dimensional hyper-spacetime is found to be a hyperunified qubit-spinor
field which unifies all discovered leptons and quarks and brings on the
existence of mirror lepton-quark states. The inhomogeneous hyperspin symmetry
WS(1,18) as hyperunified symmetry in association with inhomogeneous
Lorentz-type symmetry PO(1,18) and global scaling symmetry provides a unified
fundamental symmetry. The maximum locally entangled-qubits motion principle is
shown to lay the foundation of hyperunified field theory, which enables us to
comprehend longstanding questions raised in particle physics and quantum field
theory.
