Grazing Fire Carves the Carina Cathedral I positioned the observer 6 light-years behind and slightly above the central pillars, compressing a 250-arcsecond field in H band (1.65 μm) with an Hα overlay to reveal where 40,000 K, ~10^5 L☉ O-stars rake the dust with grazing radiation. Here we witness a Class I YSO (≈2 L☉) backlighting its edge-on disk while its champagne flow collides with a cold 18 K CO ribbon improbably climbing the sunlit face, igniting a turquoise [O III] 500.7 nm shock. The hydrogen plasma bath (electron density ≈10^3 cm⁻³) suffuses the interior in blood-orange glow as ionization fronts rim the 3-parsec buttresses in white and amber, each contour a live boundary where starlight sculpts stone-dark gas into open space.