I remember once, I made a flippant comment/joke in front of a colleague; likely something negative about waking up in the morning, or about life in general.

He retorted, sarcastically, something along the lines of "Oh no, I'm alive!"

I don't remember the details of exactly what was said, or how. But I remember vividly the realisation I came to in that moment...

The realisation that this person has clearly never been depressed. That *some people have never experienced depression*.

Not being depressed--nay, not even *having ever* been depressed--was (and perhaps still is) something so alien to me.

There was a time, when I was literally a young child, that depression didn't make sense to me... But it amazes me that people make it into their 50s, 60s, without ever knowing what it's like.

Anyways, there wasn't really a point to this thread, but I do want to clarify that I don't have a negative attitude to life; not at all.. mental health is what it is, but it doesn't impede on principles.