Core Viewpoint - The letters from overseas Chinese during the Spring Festival reflect deep familial connections and cultural sentiments, showcasing the evolution of communication from traditional letters to modern digital messages while maintaining the essence of longing for home and family [1]. Group 1: Historical Context of Letters - The letters serve as a historical snapshot, connecting generations of overseas Chinese and documenting their struggles and achievements over time [1]. - The letters illustrate the transition from survival to development, highlighting the importance of family ties and cultural exchange [1]. Group 2: Specific Letters and Their Significance - A letter from Zhenhai, a Chinese expatriate in 1966, includes a monetary gift of 50 Hong Kong dollars as "yaojin" (lucky money), symbolizing the cultural practice of sending financial support along with personal messages [5]. - Zhenhai's letter emphasizes the emotional connection to his roots and the customs of his hometown, reflecting the enduring sentiment of overseas Chinese towards their homeland [5]. - Another letter from Huang Faxiang in 1908 showcases the financial responsibilities and familial obligations of overseas Chinese, detailing the transfer of 224 silver dollars to family members, which illustrates the established financial networks among expatriates [17]. - Chen Zhujin's letter from South Africa highlights the community's efforts to support each other during crises, demonstrating the role of overseas Chinese organizations in fostering solidarity and cultural ties [18]. - The letters from Chen Weipeng and Chen Weijie, young Chinese expatriates in Panama, express their commitment to enhancing cultural exchanges between China and Panama, showcasing the younger generation's role in continuing these traditions [21].