What does "destroyed is birth" refer to in SN 35.28

> Burning with the fire of lust, with the fire of hatred, with the fire > of delusion; burning with birth, aging, and death; with sorrow, > lamentation, pain, displeasure, and despair, I say. > > Seeing thus, bhikkhus, the instructed noble disciple experiences > revulsion... Experiencing revulsion, he becomes dispassionate. Through > dispassion his mind is liberated. When it is liberated there comes the > knowledge: ‘It’s liberated.’ He understands: ‘**Destroyed is birth**, the > holy life has been lived, what had to be done has been done, there is > no more for this state of being.’ What does "destroyed is birth" refer to here, especially regarding a supposed person that manages to overcome, let's say, hatred. The person has a Eureka moment and proclaims "destroyed is birth". What do they mean with that, or rather, **what are they trying to express about their life**?