In my experience I have found this to be entirely true.

I find happiness to be "the art of expectation setting", and the "art of reframe".

Mindfulness meditation and introspection help a lot.

But, becoming "good" at this skill comes with a particular loss, of which I have some wistful feelings for.

Life no longer feels like it is happening to me. I do not experience large swings of emotion, great loss, unexpected turns, high highs, low lows. Music doesn't hit like it once did.

I have traded the turbulence of life for predictable, stable growth. It is less exciting, and I have mourned the loss of my previous way of seeing, but I am much happier now.