Exactly. Proving the theorem was his dream and kick started his passion for maths. This is a man who has achieved his childhood dream. That's no different from

Exactly. Proving the theorem was his dream and kick started his passion for maths. This is a man who has achieved his childhood dream. That's no different from a singer who's achieved their childhood dream. For many, I imagine maths is cold and joyless so they associate that with those who enjoy it. Nobody can see the internal experience, which probably is just as warm and joyful as the singer or writer who achieved their dreams.