words and expressions:

     to figure:  to represent mentally, to imagine 

       bread and butter: Synecdoche, a figure of speech by which a part is used for a   

      whole, an individual for a class, a material for a thing, or the reverse of any of these. 

      A good synecdoche is based on an important part of the whole and not a minor part 

      and, usually, the part selected to stand for the whole is the part most directly 

      associated with the subject under discussion. Here bread and butter represents food. 

        phantom: is something that seems to appear to the sight but has no physical 

      existence, a specter 鬼怪，幽灵

       angel: The original meaning is a messenger of God and a supernatural being to   

      whom are attributed greater than human power, intelligence, etc. The 

      conventionalized image of an angel is one of a white-robed figure in human form 

      with wings and a halo. 

       symbols: A symbol is something that stands for, represents, or suggests another    

       thing, especially an object used to represent something abstract. For instance, a dove 

       is symbol of peace, and a rose is symbolic of love.