  We write down an explicit projection that maps any given 4-spinor to a point
in 3+1 spacetime while commuting with the Lorentz action. This suggests that a
Lorentz invariant theory - including spacetime itself - has a more natural
expression in terms of these primitive spinor variables, while an ordinary
spacetime interpretation may be obtained by projecting solutions. Using this
projection, we show how the real components of a given 4-spinor reference a
point in a five dimensional spacetime.
