The reason why you can perceive an object or physical matter in general is because it exists in terms of vibration energy and each of your senses (touch, taste, smell, sound) are built in your body to detect different ranges of the vibrations physical matter is made of- through your hands and skin, ears, nose and mouth.
When you can 'see' you can merely perceive what is called light. Light is similar to sound because some things create light like fire which is like an earthquake creates an audible rumble and others just reflect it like an echo off a cliff or a wall.
Also like sound, light can be sensed at great distances like a car in the distance. you can't touch it taste it or smell it or interact with it but you know its there.
The benefits to being able to perceive light is that you can sense literally everything that is in front of you all at once unless there is a something in front of a smaller object blocking it. Although, the cool thing about light is with lenses and optical fibers we can distort and bend light so we can do miraculous things with it." -
When you think about seeing in this sense comparing it to sounds, feelings smells etc it becomes easier to describe. explaining Bad Eyesight is like describing sensing a sharp edge of a knife that will cut you as soft when you touch it but it still cuts. and a kaleidoscope is similar to hearing a sound through a wall or under water.
There are many blind poetry describe sunrise or sunset better than sighted persons.
I see there is no problem at all to speak with any blind person about colors or nature even the the stars in the sky .
