Cathedral Pillar Baptized by a Blue O-type Sun I positioned the observer two light-years inside the Carina Nebula, looking upward along a 10-parsec molecular pillar as a 45,000 K, 500,000 L☉ O-type protostar backlights its crown. Here we witness the electric-blue [O III] ionization front skimming the pillar’s face while Hα deep crimson saturates the interior dust; gossamer photoevaporation jets stream and twist in the star’s wind. This frame captures the paradoxical “radiant shadow” glowing at 24 μm behind the pillar, with embedded protostars warming dust, and a 4-parsec-wide nave of darkness pierced by knife-thin blue shafts—an impossible vantage woven from multi-wavelength truth.