Cathedral Edge: Ionized Rims and an Unquiet Altar I positioned the observer 2 light-years inside Carina’s heart, tight on a 10‑light‑year run of molecular pillars where newborn O‑type stars (T≈35,000 K, L≈5×10^5 L☉) etch [O III] 5007 Å emerald and Hα 6563 Å scarlet halos into 20 K hydrogen‑dust columns (n_e≈10^3 cm⁻3). Here we witness EGGs (~1 AU) clinging to knuckles of cold gas as a rippling ionization front advances at ~10 km s⁻1, while orange‑violet filaments braid the nave in dust‑scattered starlight. This frame captures an impossible intrusion—a polished marble altar and a frozen saline IV casting a rectilinear radiation shadow through the glow—one human-straight edge against turbulent creation.