立春日，春在何处立？

Group 1 - The core idea of the article is that the beginning of spring, marked by the solar term "Lichun," is culturally significant in China, despite most of the country still experiencing winter temperatures at this time [1][2]. - The scientific definition of "Lichun" occurs when the sun reaches the celestial longitude of 315 degrees, typically between February 3 and 5 each year, indicating a fixed time frame for this seasonal marker [2]. - The cultural interpretations of "Lichun" vary across different regions and eras, reflecting local agricultural practices and weather patterns, such as the saying "Lichun one year starts, plan farming early" which advises farmers to prepare for agricultural activities before the warming [2]. Group 2 - The spirit of "Lichun" embodies people's longing for the warmth of spring and the anticipation of a fruitful year, showcasing the deep-rooted cultural significance of seasonal changes in daily life [2]. - The diverse climatic conditions across China lead to different experiences of spring, yet the shared joy of welcoming spring remains a common sentiment among people, highlighting the respect for nature and sustainable development inherent in Chinese culture [2].