The dense and thick clouds in the sky seemed to be filled with tears, but did not specifically refer to relatives. The sky is covered with thick clouds and the sky is full of tears. This is a sentence in the poem "Yaochi", which expresses a kind of melancholy or sad emotion. This poem uses natural imagery to describe the sadness and desolation in the author's heart. Jiutian Nongyun refers to the dense and thick clouds in the sky, implying a heavy and gloomy atmosphere. The sky is full of tears, which means there seem to be tears falling in the sky, symbolizing a state of sadness, so the original sentence is not just about one's own relatives.