The meaning of the word metaphor according to the Oxford Dictionary Thesaurus is:

1. A figure of speech in which a word or a phrase is applied to something to which it is not literally applicable (e.g. food for thought). 2. A thing symbolic of something else.

 The word 'metaphor' is the point of departure or angle of entry and possibly the main heading/title for the body of work 'four personalities' OR ' sanguine-melancholic-choleric-phlegmatic'.

 The use of metaphors is multi layered and describes various aspects of the multiple/different personalities. The symbolic use of the circle describes the four main personalities of the human being: sanguine, melancholic, choleric and phlegmatic.  

 Every individuals personality consists of a little of each or one personality type might be dominant in a person. The intention is to "illustrate" and create an awareness of the theme/concept by using the circle as metaphor. Once we are aware of the differences between the personalities it is easier to understand a person or people and enable one to have less complicated and meaningful relationships. By "quartering", dividing, breaking up or dissecting the use of the circle in sometimes four equal or unequal slices I attempt to understand and portray what it is that makes a person an individual. Through the use of the circle a slice of life comes to mind and the continuous beginning and no end of a circle or shape.