Oil, gold and fire are the treasures inside the proud giant mountains. For the little mountain it's impossible to keep up with that. He's just in possession of this tiny, strange and useless SOME THING.
Little Things Mean a Lot
While the big guys (mountains) are belching oil, gold, and fire, the little guy has something that appears to be a walnut. He is confused and flustered, and suffers all kinds of disdain from his bigger brothers. But since he can only be patient things work out for him. He sits in the rain, uncomfortable, victimized for a while, and then an interesting thing happens.