Personnify it, make it a torturer... Relate it to enclosure,prison,dunjeon,a place that prevent u to the outside... Relate Sadness to depression,river,tide,tear,moon,a frustration,an emotion that's u deserve. u can't escape sadness but if u retain for too long, nobody will never listen to it. The world couldn't take it our even take it as an accomplishment,reason? They are destructif,bully and wish a world an ultimate end...
