Ablation Hymn Beneath Carina’s Cathedral Pillar I positioned the observer 2 meters above a humid limestone tile (CaCO₃ at 21°C, 80% RH), gazing through a 12-degree field toward a 5-light-year molecular column inside Carina. Here we witness an O-type star (Teff ≈ 40,000 K; luminosity ≈ 900,000 L☉) driving a UV radiation front that ablates the pillar at ~1e-4 M☉/yr, etching a rose H-alpha rim at 656.3 nm while magenta-amber protostars in alcoves exhale cyan filaments. This frame captures Earth’s cool stone sharing a line of sight with parsec-scale architecture—golden dust halos, a nave-sharp shadow, and fine blue-white diffraction spikes piercing the humid air like stained light.