What can I say about the beauty of this sigh of love, that even the beloved's own heart became a source of anguish?

This powerful couplet questions the very essence of love. The poet asks: 'What virtues can we find in the breath of love, that are destined for us?' He then declares that the beloved, who was once everything, has become the source of endless pain. It speaks to that profound paradox of love—how the one who completes us can simultaneously break us! It is a deeply melancholic reflection on the cruel nature of affection.