The right response to this sort of pain is not pleasure. It’s holiness. ... It means seeing life as a moral drama, placing the hard experiences in a moral context and trying to redeem something bad by turning it into something sacred.Amen. And this is a conclusion that you have to choose for yourself. It is a hard choice. I don't think those who do not get there are to be blamed.
But there is a further step, which takes us back to happiness. At the end of the Nicomachean Ethics, Aristotle says that the highest happiness comes from contemplation. This comes as a bit of a surprise, after the first nine books talk about how to achieve happiness through action.
I believe, though, that Aristotle is right. It is only in contemplating the fruits of a life of active virtue that we can have a deeper understanding of what happiness is. And the deepest understanding comes from contemplating suffering turned into holiness.