You Are Not Blind
Once a blind man came into the house of Rasul Allah (sal Allahu alaihi wa sallam). The Prophet (sal Allahu alaihi wa sallam) told Ummul Mumineen Aisha (radi Allahu anha) to go behind a curtain. She replied, “O Prophet of Allah, he is blind. How can he see us?” The Prophet (sal Allahu alaihi wa sallam) replied: “He may be blind, but you are not blind.” [Ahmad]
From this hadith we can deduce that just as it is forbidden for a man to look at a non-mahram woman, it is similarly forbidden for a woman to look at a non-mahram man. Both men and women need to guard their glances in order to protect their faith and modesty.
The glance opens the door to lustful looking, which in turn slowly and surely takes one down the road to adultery or fornication. Another hadith describes the gaze of a non-mahram as one of the arrows of the Shaitaan. These arrows tear into the fabric of our ruh/soul, shredding it to bits so that we are not able to return victoriously to Allah (subhana wa ta’ala) with a qalb saleem – the intact, wholesome ruh Allah (subhana wa ta’ala) sent us with into the world.