Many horizons are captured in life.
The far distant one hovering over the sea and beneath the sky. Or the one of the unborn in the mothers womb, very narrow and close, but still a horizon. The horizon in the city you cannot see because of all the houses and highrises, but in the great plains you can feel the horizon hitting hard the sky in some distance. In the mountains the horizon is a mysterious place beyond the next pass or hill.
The horizon defines our possibilities. The more distant the horizon is, the more we can imagine the choices we might have. The narrower it comes the less we have to choose from. Horizons are defining our mind-set. To widen our horizon in a narrow setting we have to imagine the open landscape and free our minds from the walls around us.