I often ponder about how it would be to navigate and exist if our ability to observe changes. Our vision is a key part of how we make sense of the world, and our alternate senses work along with it, but not without it in most cases.
I, therefore, try out different experiments to see how I can work without my eyesight. At first, I started counting steps on my stairs while going up and down my various flights.
Then, subconsciously you are always counting when you descend or ascend which adds an extra level of security when you carry things up or down. I carry my dog with his dog bed sometimes (he has a bad back and surgery on it, so he is not allowed to climb stairs or jump up or down from furniture). So, this practice helped.
This led to my secondly starting to go from my master bedroom upstairs to the kitchen downstairs while keeping my eyes completely closed. Purely by imagined direction and counting the steps including on the stairway. I do it late at night or early mornings and therefore have not bumped into anyone yet. But it is a surreal experience that tells you the value of a simple thing that we take for granted - our eyesight.
Only when you create constraints than what one is used to, do you get to experience totally different experiences and perspectives that one would miss otherwise.
There are other similar experiments that I conduct. Like crawling around at the level of my dog and moving around with him. How we look at the world from his level close to the ground gets us to appreciate how well he functions given the limitations of his design.
These are indeed humbling experiences that teach us new ways of looking at the world.