I think most people don't "get over" depression, so much as learn to live with themselves and the world and their new outlook. It's how I feel about it at least, and it's not hard to recognise it in others.

The process can take many years. There's still joy in the world, but I find I have more conscious awareness of it.

I'd be really interested to see studies of people who "recovered" from depression. Maybe there are two cohorts; those who get their rose-coloured glasses back, and those who have to learn to cope with what they feel. [That sounds worse than I intend it to, but I can't think of a better way to express it].