  We determine the leading Fock state light front wave functions (LFWFs) of the
pion and kaon via light front projections of the covariant Bethe-Salpeter wave
function. Using these LFWFs we study the multi-dimensional images of the
valence quarks in the pion and kaon that are provided by their generalized
parton distribution functions (GPDs) and transverse momentum dependent parton
distribution functions (TMDs). Moments of the GPDs are taken to obtain the
electromagnetic and gravitational form factors of the pion and kaon, and
comparisons to available experimental and lattice data are made. Highlights
from this study include predictions that the mean-squared impact parameter for
the quarks in the pion and kaon are: $\langle
\vec{b}_T^2\rangle_{u}^\pi=0.11$fm$^2$, $\langle
\vec{b}_T^2\rangle_{s}^K=0.08$fm$^2$, and $\langle
\vec{b}_T^2\rangle_{u}^K=0.13$fm$^2$, and therefore the $s$ quark in the kaon
is much closer to the center of transverse momentum than the $u$ quark. From
the electromagnetic and gravitational form factors we find that the light-cone
energy radii are about 60\% smaller than the light-cone charge radii for each
quark sector in the pion and kaon. A quantitative measure of the importance of
the leading Fock state is obtained via comparison with a full DSE calculation
(containing an infinite tower of Fock states) for the pion form factor.
