The image line shows a whole population wilting through a stifling summer, and it promises that matters go as the heart wishes. Temple editions attach the story of Zhuge Liang entering Sichuan in the Three Kingdoms era. Liu Zhang, who governed the western province of Yi, invited Liu Bei in to help guard against the warlord Zhang Lu. Liu Bei later turned on his host, and Zhuge Liang led troops upriver to join the campaign. Chengdu surrendered in 214, and the rugged, well-stocked province became the base of the Shu Han state. After years of campaigning without a secure home, Liu Bei's side finally had shelter and a granary. That is the cool wind of the poem, relief that arrives after the worst of the heat, and it is why the lot sits in the upper grade.