  Rubinstein--Tillmann generalized the notions of Heegaard splittings of
3-manifolds and trisections of 4-manifolds by defining {\it multisections} of
PL $n$-manifolds, which are decompositions into $k=\lfloor n/2\rfloor+1$
$n$-dimensional 1-handlebodies with nice intersection properties. For each
odd-dimensional torus $T^n$, we construct a multisection which is {\it
efficient} in the sense that each 1-handlebody has genus $n$, which we prove is
optimal; each multisection is {\it symmetric} with respect to both the
permutation action of $S_n$ on the indices and the $\Z_k$ translation action
along the main diagonal. We also construct such a trisection of $T^4$, lift all
symmetric multisections of tori to certain cubulated manifolds, and obtain
combinatorial identities as corollaries.
