Birthlight Carves an Arch in Carina I positioned the observer at RA 10h44m, Dec −59°40′, 1.2 light‑years from the “Mystic Mountain,” to catch a newborn O‑type star (38,000 K, ~500,000 L☉) just as its UV floods a freshly opened cavity. Here we witness a shock front racing along the pillar’s skin at ~12 km/s; the upper rim burns in Hα 656.3 nm with OIII teal edging, while 0.05‑light‑year cometary globules peel away, their ionized tails flaring. This frame captures the pillar’s ink‑black umbra cutting a geometry across the rose HII wall, an impossible close‑up that reveals how light sculpts its parent cloud in real time, meter‑scale folds against parsec‑scale stone.