They can't
About 50%
Many people have had near death experiences in which they saw heaven or hell. It has a profound effect because of the visions of what life is like after death.
Blind Joe Death was created in 1959.
I Remember Blind Joe Death was created in 1987.
Helen Keller is the famous individual who was both blind and deaf. She overcame her disabilities to become a renowned author, political activist, and lecturer. Her story continues to inspire many people around the world.
death
Because most people don't believe that religious experiences are real. Most religious experiences (i.e. Near Death Experiences and Out of Body Experiences) have been scientifically proved to be natural in their causes and aren't religious in any way. (NOTE: I am a Hindu)
No, Monteverdi did not go blind before his death. He continued to compose music and conduct performances until his death in 1643.
No one knows as no one has come back from the dead that has been blind to say what has happened after death. //I have heard a blind man declare that in a NDE (near death experience) he had sight. For the first time he was able to actually see, once he recovered his sight was gone again. It was only during the time he spent in the 'afterlife' that he had vision.//
Homosexuals
No, although there are people who have had near death experiences that say they were in hell before they came back to life.
Because she was a girl that could learn to talk write and do all those other useful things, even though she was blind and death. Most people that are blind or death or both could not bother to learn taht like Hellen Keller.