Rain Water is a Chinese solar term occurring annually around February 18-20, signaling increased rainfall crucial for agriculture. This period features fluctuating temperatures, gradually warming but also prone to “cold snaps” and significant shifts. Ancient poems celebrate this time when spring rains nourish crops, embodying the phrase “spring rain is precious as oil” for its vital role in growth.

东风吹散梅梢雪，一夜挽回天下春。从此阳春应有脚，百花富贵草精神。 《立春》宋·白玉蟾 立春（Beginning…