I was thinking about whether a team decision had left me a little disillusioned about the team's direction.

And then I thought, "well, I guess I need to get re... um... re-illusioned?"

It’s been observed for a long time that we only get by in this world by subscribing to a consensual illusion about How Things Are, even if most of the time we are oblivious to this. What surprised me is that this concept is integrated into our vocabulary in such a common word.