Summary:
Seneca suggests that the key to true peace of mind lies in living a virtuous life, free from wrongdoing. Those who lack self-control and act impulsively experience internal chaos, while those who maintain integrity find a deeper sense of calm and order.

Interpretation:
In practical terms, this means that guilt, the result of poor choices or immoral actions, is a far greater burden than any external consequence. For example, when you live in alignment with your values and act with integrity, you avoid the inner turmoil that comes from making unethical decisions. In contrast, when we give in to impulses or dishonesty, we create inner conflict that disrupts our peace. Living mindfully and exercising self-control brings a sense of tranquillity and satisfaction that no external achievement or possession can match.