Sadness and grief. It is symbolical of a heart which is not "flat" or "level," asthe Chinese say, not open or care-free, but of one which is "tightly rolled." The sound of rain on its leaves is very mournful, therefore an allusion to the plantain always means sorrow. Planted outside windows already glazed with silk, its heavy green leaves soften the glaring light of Summer, and it is often used for this purpose.