Symbolism of Jewels

The cave in "The Truth is a Cave in the Black Mountains," as the title suggests, represents the truth. In the narrative, the dwarf takes a long journey, not necessarily to find wealth, but to find the truth, which he eventually does. This represents the journey to find the truth for all of humanity. Humans have been attempting to determine the absolute truth of existence and society for ages, and the journey is not done yet. However, the dwarf does find the truth and gets his revenge.