Answer:
True
Explanation:
Superstitions are commonly made every day even in our science based lives. Wether it be lucky numbers to walking past black cats.
He tells Percy the story about the tree and a girl named Thalia. The story was that Thalia, Annabeth and other half bloods where exploring outside of the half blood camp. But then monsters came out of nowhere and started fighting them. They tried to fight the monsters but they weren’t strong enough. So Thalia protected them and risked her own life to save them. But thalia died and Zeus her father grew a tree in her honor, and the tree provided a barrier for the camp to keep them safe. :-)
No matter how wealthy they may be it doesn't give them happiness.