Every goal, every action, every thought, every feeling one experiences, whether it be consciously or unconsciously known, is an attempt to increase one's level of peace of mind.

Meaning: Persistent worry can wear down even someone imagined as resilient. The cat’s death exaggerates the burden of care and encourages attention to strain rather than admiration for endless endurance.

Meaning: Even something imagined to be unusually resilient can be worn down by worry. The cat’s nine lives make the exaggeration of care killing it more striking.

Meaning: The saying recommends relinquishing resentment, forgetting a wrong and forgiving as a path towards a happier life. That is an aspiration, not a guarantee or a duty to excuse ongoing harm.

Meaning: The phrase urges leaving a wrong behind rather than repeatedly returning to it. Forgiving and forgetting are separate possibilities, and neither should be demanded as proof that someone has dealt with harm correctly.