Because you’re the one talking about other people’s state of mind.
That’s how I know your state of mind is scattered: because you’re looking into your own mind for your conclusions … and finding someone else’s. There isn’t actually a way to observe emotions. You really aren’t Yoda.
Here’s the thing: if you’re wrong when you ‘conclude’ based on your desire to be right that someone else is mad or sad or whatever, who will detect your mistake first? They are actually an authority upon themselves, and you probably aren’t a psychologist with a brain-wave reading device.
So how do I know it’s you projecting?
Because it’s you talking about emotions while having zero evidence and lots of motivation to make things up.
Of course the best part about this spell-form is that once you’ve projected, everyone knows about yours. If you get stuck lying to yourself about what’s happening, you’re the one sharing with the group full-time.