Centaury is for a type of people that can be very passive and too easily giving in to others.
Dr Bach’s describe this remedy for people that are kind, quiet, gentle who are over-anxious to serve others. Their good nature leads them to do more than their own share of work, and in so doing they may neglect their own particular mission in life.
Centaury people feel that they fail to achieve as much as they could because they are submissive open to being controlled by others, rather than taking charge of their own destiny and initiating things for themselves.
The remedy helps them to define their boundaries so that they know that it is also ok for them to say NO.
It also helps such people to maintain their sense of individuality and to stand up for themselves and their needs.