The essence of the ancestor's knowledge reflects upon the proverbs, which possess not only harmonious meters and poetical rhetoric, but also the sense of knowledge and didacticism. The subject of this essay is the Min Nan idiom in Taiwan; the content includes: (1) To interpret the formation of proverbs, the essential characteristics and the cultural content by the metaphor or image of amber-which itself shares a variety of characteristics in common; (2) To explore how, in terms of semiotics, the ancestors research on the Min Nan dialect through its structure, syntax, function and so forth and, moreover, propose the possible trends of Min Nan dialect study; (3) To expound the germinal formation and the comprehension strategies by the theory and method of cognitive linguistics.