Cathedral Edge: Ionization Front at Carina’s Western Wall I positioned the observer 0.02 parsecs from the base of a 4-light-year molecular pillar, its skin burning at 8,000–10,000 K as O‑type starlight from the left scours it with [O III] teal and [S II] deep red filaments. Here we witness photoevaporation streams peeling away at 20–50 km/s, protostellar cocoons (~0.2 M☉ each) casting knife‑sharp silhouettes beneath a backlit vault where Hα glows at 7,500 K. This frame captures the sacred hush of stellar birth on kiloparsec scales while resolving pebble‑sized evaporating knots in the foreground—an impossible, wide‑angle narrowband view spanning ~2 light‑years in a single exposure.