A personal belief system, also known as a CREDO, is a set of values and principles that guide an individual's behavior and decisions. It is a reflection of one's beliefs, values, and attitudes about life, and it serves as a moral compass for how one should live their life. CREDO is derived from the Latin word for 'I believe, ' and it is used to refer to a statement of beliefs or principles. A personal belief system is unique to each individual, and it can be shaped by religious, cultural, and philosophical influences.