What if light could grow—cultivated, not built? Mycolumina (from myco, fungus, and lumina, light) explores the poetic potential of mycelium in a world urgently rethinking materials. We challenged its limits—not just as structure, but as a vessel for intricacy, symbolism, and atmosphere. Inspired by traditional geometry, this work invites nature to speak through form and shadow, revealing a future where beauty and sustainability grow together.