May I also add that I think that there are two levels at which we can give up or reduce our craving for existence — the ultimate level, in which we eradicate bhavasava to become Arahants and the mundane level, in which we decide to undertake the path to Nibbana, after being somewhat convinced of the superior state that Nibbana is, even if it means the ending of the form of existence that we are intimately familiar with.
We would be embarking on the path away from the conditioned to the Unconditioned, in the latter case.