Let's say, everyone around You, everyone You know was born with a box on their head. A plain card board box. It's got eyes holes and a hole for Your mouth ect. But limited vision. No one's questions this because no one sees a problem with it. EVERYONE has a box on their head. So it goes unseen. You live your daily life and never think anything of it. You, and everyone else in existence, is unaware of the box. Not ignorant. Just unaware.
Until one day, something happens. Maybe You tripped? i don't know, but the box fell off. You saw the world clearly, You became aware. You looked in the mirror and You saw what you truly looked like. "This is amazing!" is the first thought to come flying into Your head. You want to tell everyone, You want them to see what You see, to experience this.
So You tell Them, but They think you're crazy. They won't listen to Your ideas. Your words are unheard. But You see how stupid everyone looks walking around with card board boxes on their heads, but You realize that You're the only one and You will never be like them again. You lost Your box, and even if You had It, You wouldn't put it back on.