- A true yogi is one who has conquered the mind and senses, not merely one who practices physical postures.
- The mind can be either a friend or an enemy—when controlled, it becomes a friend; when uncontrolled, it acts as an enemy.
- Self-conquest is the greatest victory.
"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." (Verse 6)