What emotion did Bai Juyi express in Early Cicada?

Expressed his yearning for his hometown. Bai Juyi's Early Cicada evokes the poet's memory and yearning for his hometown by describing the cicada singing. These two sentences directly express the poet's longing for his hometown. Therefore, this poem can be understood as Bai Juyi's deep yearning and nostalgia for his hometown when he was wandering in a foreign land.