Some asteroids grew large enough for their interiors to melt and separate into metallic cores. As these iron-nickel cores cooled extremely slowly over millions of years, different metallic phases crystallized along specific planes in the crystal structure. When an iron meteorite is cut and etched, this structure appears as the distinctive Widmanstätten pattern—a record of cooling rates far slower than those normally achievable in a laboratory.

Philosophical parallel: Deep commitment develops beneath the surface and over time. What endures is often shaped gradually, through sustained internal alignment rather than immediate outward change.