A habit is the usual condition or state of a person or thing, either natural or acquired, regarded as something had, possessed, and firmly retained. There are two kinds of habit; Nuns' clothing and personal habit.

A personal habit is one which shows a habitual routine that is not consciously considered.

“The beginning of a habit is like an invisible thread, but every time we repeat the act we strengthen the strand, add to it another filament, until it becomes a great cable and binds us irrevocably in thought and act.” -Orison Swett Marden