As traditional festivals are gradually reduced to commercial promotional windows, while younger generations across nations simultaneously celebrate the imported "Black Friday" through social media, should we worry that local cultural identity is being diluted by global consumerism? Between preserving cultural roots and embracing the tide of globalization, is it more urgent to uphold the ritual significance of customs and linguistic heritage, or is actively integrating into cross-cultural convergence the essential path to future prosperity? Please articulate your stance on this dilemma and support it with concrete examples.