Symbolic image: the poet concretizes his thoughts and feelings through the use of symbolic body, which causes readers to think deeply and thus obtains aesthetic pleasure.
With the help of vivid figurative images, feelings and thoughts are concretized, thus enhancing the expression effect of poetry.
Refers to the concrete description of the image, so as to concretize the feelings. Of course, description is not objective, but permeates the subject's thoughts, feelings and aesthetic ideals.
Synaesthesia image: that is, to concretize feelings with synaesthesia image, so as to obtain a novel artistic feeling.