  In terms of an effective chiral theory of mesons it is shown quantitatively
that in the limit of $m_{q}=0$, the masses of $\rho$, $\omega$, $K^{*}(892)$,
$m_{\phi}$, $a_{1}$, $f_{1}(1286)$, $K_{1}(1400)$, and $f_{1}(1510)$ mesons
originate from dynamical chiral symmetry breaking.
