You know, somehow and someway, we're limited by the restrictions we place on ourselves.
We're limited because we don't look further than these restrictions and so we can't see farther than them. We build walls around certain territories of our lives thereby limiting ourselves.
However wide the space within the walls are, as long as those walls are built we have set limits and restrictions. In turn, our ideas and views are limited to staying within those walls.
That's why you find people who tell you "that's the only way out". The reason is simple - they've limited themselves to that particular way and so can't see beyond it.
If you keep focusing on a particular spot there's always the tendency of thinking that that's the only spot in the area. But once you can stop focusing on that spot, you'll start to see other opportunities.
The same goes on in eveything in life. If we can broaden our views and open our heart then we can recieve new and better ideas and views. If you keep walls around you, you not only can't reach past the walls but what is outside the walls can't reach you; it can't even see you.
So we should stop limiting ourselves to things; stop restricting ourselves, our abilities but try to keep reaching higher and higher with an open heart and mind