When cicadas start singing in summer, Tan Yue is green. What does this mean?

It means that cicadas begin to sing in summer, and sandalwood is rich, cheerful and lush in summer. Cicada began to sing, which means that after the summer solstice, the vegetation gradually became wet, suitable for the survival of cicadas, and cicadas began to move; Tan Yue means that under the action of sandalwood, people feel happy; Green refers to the lush weather in summer; The moral is to satisfy the enthusiasm of summer growth, and all expectations will eventually bloom.