Someone is killed each and every day. They are killed because other people are on drugs and drive or because of careless drivers.
Someone can make a difference in the world that which we are living in today.
If there is someone doing drugs at this very moment, sooner or later the world is going to lose them. The world will be one person short. Before it's too late, if someone can change a persons' mind about wanting to do drugs, then that person has saved someones life.
The meaning of this is that everyone should live life as if it was their last day on Earth. Life is here for only a short time. YOu can live life to the fullest without the drugs.