This topic raises the question of what role my mind plays in finding happiness?

The ancient yoga scripture, Bhagavad-gita, states –

One must deliver himself with the help of his mind, and not degrade himself. The mind is the friend of the conditioned soul, and his enemy as well. For him who has conquered the mind, the mind is the best of friends; but for one who has failed to do so, his mind will remain the greatest enemy.” Bg 6.5-6