If I'm a poison,I dont want to  be the one takes people into abyss .If I'm a poison, you  cant find the medicine. I'm the one you are dependent on,can exchange for happiness.

     when poison meets poison,  when poison drinks poison,what  will  happen,what will be,and  what will be changed. You find the medicine to rescue you from abyss,but the poison cant find one,is there a poison in the world  which  can let people forget the affection completely? So poison drinks poison continue,until be killed with poison. 

     Be Poison? Be medicine?  How to use,depend on the patient.