What is poison?

Most of the attitudes we keep has a long way of making us or pulling us down. Our Egos and wicked ambitions have a way of killing the good vibes in Us I term all those as poison ..because they infiltrate and spread throughout our thoughts which become our words, Our words which becomes our Actions , Our actions which becomes Our Habits, Our habits which become our Characters and Our Characters which becomes Our Attitudes and Lifestyle. Check for any poison in your life.