I'm certain this is true. And today is a case in point. I'd just cleaned the house and I was in the middle of a pile of ironing when Harry and Max arrived for a Grandma School lesson. I didn't have time to ask myself whether or not I was happy! And, sure enough, when all was quiet and I became contemplative I discovered I'd been utterly happy for an hour!
Not much of a first entry but I'll improve!