I would go back a few years to when I was playing WoW.
Not to when I was doing high end progression, but to the very first day I started playing it. Before I knew what was going on, before I was even interacting with any players.
Back then, the world had a certain magic to it. It was absolutely gigantic, and it was totally and utterly better than anything I'd ever seen until this point.
I've played hundreads of games since, but I doubt I'll ever be able to capture that magic again.