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The other side was engraved with "Swallowtail Ridge Pattern + Tea Horse Trade Route Pattern." The youngsters could place rubbing templates against the pillars or window lattices, trace the patterns with glass powder, then bond and set them to make "Stained-Glass Pattern Pendants," preserving the brilliant colors of Manchurian Windows while incorporating the imprints of global patterns. Hu Fei personally made a rubbing on a pillar, dipping his scabbard in colored glass powder and sweeping it along the interwoven paths of the "Golden Money Spiral Pattern" and the "Blade-Mark Curve." A "Blade-Light Reflecting Color Spiral" design immediately appeared on the pillar. He said with a smile, "Hung on an arcade window, this pendant has both the everyday bustle of Lingnan and the sharpness of blade light. It truly brings 'arcades across civilizations.'" These "Stained-Glass Pattern Pendants" later became "tokens of trade" for arcade study tours. Visitors could learn rubbing techniques from A Jie and listen to Mba explain what the Pillar Spiral Pattern and the rainforest vine pattern had in common-"both use rotation to record the cycle of life." Three, a digital upgrade for the arcades: letting AR "reveal commercial history." Lina and Nikos optimized the "Pattern Tracking" technology for the arcade district's surroundings and developed the "Lingnan Arcade AR Glasses": scanning a "Pillar Spiral Pattern" with the glasses brought up an animated trade map marking the shops' business sectors and supply routes back then, and users could also switch perspectives to see bustling scenes in the arcades a hundred years earlier, such as transactions at silk shops and teahouses welcoming guests; scanning a "Manchurian Window Pattern" displayed an animation of Hu Fei demonstrating the "Arcade Pillar Step," overlaid with Southern Fujian's "Swallowtail Ridge Step" and Jiangnan's "Water-Network Boating Step," allowing the youngsters to see the "commercial resonance of global patterns" directly. Hu Fei also proposed adding "saber-technique AR trade interpretation": scanning a "Golden Money Spiral Pattern" would bring up details of the pillar pattern annotated with lines of blade light, explaining the stage of a shop's development that each spiral loop represented, such as the inner loop representing its founding and the outer loop its expansion. While learning with the AR glasses, A Jie suddenly pointed at a pillar pattern and said, "So this spiral means my grandfather's grandfather expanded his business overseas. That's amazing!" Four, the stained-glass moment at the Arcade Pattern Festival: blade light reflected in stained glass. To bring Lingnan arcade patterns to the world, the Pioneer Team, the Arcade Preservation Association, and Hu Fei jointly held the "Lingnan Arcade Pattern Festival." On the day of the festival, the Xiguan Arcade District was exceptionally lively: the youngsters wore traditional Lingnan clothing-the boys in Tang-style shirts and trousers, the girls in qipaos-and practiced the "Arcade Merchant-Guarding Fist" along the corridors while performing the "Arcade Pillar Step"; A Jie led everyone in using colored glass powder to make a giant "Golden Money Spiral Pattern" rubbing on the pillars, while Hu Fei traced a "Flowers and Birds Pattern" on the Manchurian Windows with blade light, the two intertwining into a spectacular "Stained-Glass Spiral Around the Pillar" design; standing in the middle of an arcade corridor with the Cold Moon Saber in hand, Hu Fei practiced the "Whirlwind Formation-Breaking" form amid patches of sunset streaming through the stained-glass windows, his blade light reflecting the colored patches like "a wandering hero guarding the arcade shopping street"; the Global Pattern Service Station showcased their respective "trade patterns" through live video links: the Southern Fujian Traditional Houses sent images of "Swallowtail Ridge Patterns reflecting families," the Tea Horse Road displayed scenes of "Tea Basket Patterns reflecting mule caravans," and the Congo Rainforest Service Station used AR technology to project "Vine Patterns" onto the arcade walls, forming a "global pattern shopping street panorama." Before they left Lingnan, Uncle Li gave Muhammad a miniature Manchurian Window engraved with "Pillar Spiral Pattern + Manchurian Window Pattern." Fragments of Snow Mountain Cold Iron gifted by Hu Fei and pieces of Southern Fujian red brick were also inlaid along the edges of its frame. "This window once held the breezes of the arcades, and it also holds the warmth of civilizations around the globe. It's a keepsake that spans mountains and seas." Hu Fei patted A Jie's shoulder and said, "From now on, take the stories of the arcade patterns,