Prince Harry likes to talk.
He'll often say hello to the royal press pack, maybe make small talk, but interviews are rare and as for any mention of his private life you can almost see him visibly side stepping away from any of that.
Which is why the interview about something as personal his own mental health, and his admission that even a Prince can have issues, is so fascinating.
In itself it's not surprising that a young man who lost his mother when he was just 12, in the most public way, would struggle to deal with that mentally. But Harry has never publicly talked about getting counselling or being close to a complete breakdown.
He is still vague about it. For example we don't hear anecdotes of when he thought he was at his worst, but we know what he's talking about. It gives us a fresh insight into those years when our 'Party Prince' was regularly in the papers, a time when some believed he was going off the rails.
Things are different now. There is a general public fondness for Harry. Falling out of nightclubs in his 20s, scrapping with photographers and a spot of naked snooker in Las Vegas have done his reputation no harm.
You could call him the nation's favourite Prince, a bit like a favourite grandchild who can do no wrong.
And he knows that's a powerful position to be in. In the interview he says "as long as we're at this age and we're still interesting, we want to make as much of a difference as we can for the better".
That's partly why he, William and Kate launched Heads Together, their joint mental health campaign that's attracted high profile support and huge praise from politicians and health professionals.
The royal trio have been careful to try to shine the spotlight on the stories of "ordinary people". They haven't wanted this campaign to be about them. But Harry speaking openly marks a shift in that, and one that I've personally wanted to see.
Even he may be surprised at the attention it's attracted. His life is a long way from ordinary, but his mental health experiences are refreshingly normal; his own personal way of proving that whoever you are, it's okay to talk.