The Poetry "xing" Theory of Luo Da-jing's Works of Helinyulu

Luo Da-jing's works of Helinyulu mainly explain the poetry xing theory from two aspects: address xing importantly observing things, and achieve uniting sounding and living;emphasize xing is the religion of fu and bi,except xing,fu and bi will go back to nowhere.The foregoing two aspects,give a contribution for the perfection of the classical poetry xing theory.