We are all trapped in our minds, because all cannot live without a mind. All our senses, all our thoughts and emotions, are either produced or received by the middle man that is the mind. Without this middle man, we won't be able to exist, theoretically, because only the dead don't have minds.
People who "lost their minds" still have minds. It's just that their minds are at a different "place", a different "state" than what we would consider normal. The mind can also be ill as it can be healthy. It might show you reality as it is, but it definitely can deceive you regardless.
I've been deceived by my mind many times, as it made me believe that I'm in reality, when I was in fact dreaming. Whenever I woke up after such cases, I was a bit mind at my mind for deceiving me. I don't know why it would do that.
Take note that the mind only MIGHT show you reality; might show US reality. We can't really tell if what the mind shows us is true, just because the vast majority of us receive the same information as such. Much of what we regard as true, as given by our minds, might as well be a one, huge fallacy of Ad-Populum, otherwise known as the fallacy of general agreement.
It's difficult to determine what the mind is exactly. It's not necessarily the brain, because the mind could be anything that is related to us, inside ourselves. It could be us; it could be our awareness; it could be our heart.
Like with the soul, if such thing even exists, the mind doesn't necessarily have a form, a physical form, per se. It isn't necessarily an organ in the body, and yet, we for some reason know that it exists regardless.
Who knows if reality is truly physical? The mind might as well have been created everything that we've experienced, thought and interacted with. This all might be a projection, or an experiment of an unknown entity. Who knows if you're real? Maybe I'm the only one who's real? That belief is called solipsism.
Consider looking at it like this: You are a king of a wide country, but the only source of info you can receive about that country, is from an advisor. That advisor might be loyal, but it also might be pretending to be one. They might give you the whole truth about the state, just as it could twist, hide, and even provide fake information.
How can we truly know if the mind is a reliable source for understanding reality, whereas everything and everyone are experienced through the mind alone?
Even if we, let's say, research something, and find some statistics, the mind might be giving you false statistics, about false things. The fact that other minds might receive the same data, doesn't necessarily mean that it is correct. After all, ad-populum.
What if this is all a dream? An illusion, provided by a scamming middleman? Can you really say to me, that this is not all a scam, when we can only be sure of things, through perception, through experience, things that are only provided by the mind?
This is why we might truly know nothing, because the only fundamental thing we rely on to know and to exist, is the mind. We don't know if the mind is correct, we don't know if the mind is even accurate to begin with. If we want to know reality, we must know the mind, the one who grants us this reality.
Also, remember this. We don't know for sure what happens after death. Perhaps, even in death, there could truly be no escape from the mind.