  Low multiplicity celestial amplitudes of gluons and gravitons tend to be
distributional in the celestial coordinates $z,\bar z$. We provide a new
systematic remedy to this situation by studying celestial amplitudes in a basis
of light transformed boost eigenstates. Motivated by a novel equivalence
between light transforms and Witten's half-Fourier transforms to twistor space,
we light transform every positive helicity state in the coordinate $z$ and
every negative helicity state in $\bar z$. With examples, we show that this
"ambidextrous" prescription beautifully recasts two- and three-point celestial
amplitudes in terms of standard conformally covariant structures. These are
used to extract examples of celestial OPE for light transformed operators. We
also study such amplitudes at higher multiplicity by constructing the
Grassmannian representation of tree-level gluon celestial amplitudes as well as
their light transforms. The formulae for $n$-point N$^{k-2}$MHV amplitudes take
the form of Euler-type integrals over regions in Gr$(k,n)$ cut out by positive
energy constraints.
