Light is probably one of the most significant and important symbols in the Bible. Indeed, the very first action in the Bible is God saying, "Let there be light!" (Genesis 1:3)

The teaching of Jesus in Luke 8:16-18 illustrates this obvious point: we do not hide a lamp under a jar after lighting it! We light a lamp to illuminate a place.

The same lesson applies as we learn truth to illuminate our mind and thus follow a proper path. The question that Jesus asks is: "Are you actually living the truth that you have learned and come to understand?"

(References: Exodus 25:31)