Heroic and vigorous is the consistent style of Liu Yin's poetry. Because of the complexity of his thoughts and the particularity of his time, some of Liu's works, which involve singing history and expressing personal feelings and life experiences, seem depressed, sad and lack passion. Other poems are imaginary, metaphorical and full of aura.
[Source]: Journal of Ningxia University (Humanities and Social Sciences Edition), 02, 2002.