If you know anyone who suffers from GAD (Generalized Anxiety Disorder), or any type of anxiety, ask them about the voice in their head. Ask them to tell you, in a storytelling kind of way, how that voice controls their lives.
How that voice speaks to them in condescending ways, how it tramples on their self-esteem and self-worth but yet that is the only voice they listen to. The only voice they believe with unwavering conviction.
Ask them too, about all that noise they hear in the confined space between their ears. It's very noisy in there. Because thoughts are almost always racing. Every thought is fighting for attention, yet every thought gets shoved aside to make way for other thoughts. The noise in there is deafening.
If you're able to comprehend that.
While you're at it, ask them too about their innate ability to live in a separate world, yet seemingly firmly rooted and present in this one. For some, they live in that world more than this. It's not easy to leave, and it gets lonely.
You have to ask, cause you wouldn't understand it if you were to make your own conclusion.
Forget it, you might not get it even with lengthy explanation.
Whatever you do, don't ask about how depressed all these things are making them feel. You might make them cry.
It's a GAD thing.