As a young man, Duncan had been afraid of not having enough money, so in his early 20s, he began ambitiously building his future. Climbing the ladder at a prestigious Silicon Valley company, Duncan achieved vast wealth. He had a bulging bank account, a luxury sports car, and a million-dollar California home. He had everything he desired; yet he was profoundly unhappy. “I felt anxious and dissatisfied,” Duncan said. “In fact, wealth can actually make life worse.” Piles of cash didn’t provide friendship, community or joy—and often brought him only more heartache.

Some people will expend immense energy attempting to amass…