But, he proposed, substantive conversation seemed to hold the key to happiness for two main reasons: both because human beings are driven to find and create meaning in their lives, and because we are social animals who want and need to connect with other people.

“By engaging in meaningful conversations, we manage to impose meaning on an otherwise pretty chaotic world,” Dr. Mehl said. “And interpersonally, as you find this meaning, you bond with your interactive partner, and we know that interpersonal connection and integration is a core fundamental foundation of happiness.”