You missed being a part of something big. You didn't see it. You weren't there. You can only imagine, but it's not good enough, cuz you weren't there. You should have been there. It means, folks wish you could have seen it, but you didn't. And even if you could see it on video, it's not good enough. You should have been there. The energy was amazing.
Dood, you totally missed it. You shoulda been there.