  In a long series of works the author has demonstrated that the model named
the {\it spin-charge-family} theory offers the explanation for all in the {\it
standard model} assumed properties of the fermion and boson fields, as well as
for many of their so far observed properties if the space-time is $\ge (13 +1)$
while fermions interact with gravity only. In this paper, I briefly report on
the so far achievements of the theory. The main contribution demonstrates the
offer of the Clifford odd and even objects for the description of the internal
spaces of fermion (Clifford odd) and boson (Clifford even) fields, which is
opening up a new understanding of the second quantization postulates for the
fermion and boson fields: The "basis vectors" determined by the Clifford odd
objects demonstrate all the properties of the internal space of fermions and
transfer their anticommutativity to their creation and annihilation operators,
while the "basis vectors" determined by the Clifford even objects demonstrate
all the properties of the internal space of boson fields and transfer their
commutativity to their creation and annihilation operators. The toy model with
$d=(5+1)$ illustrates the statements.
