There is light in believers' faces, but disgrace in those of disbelieversGb http://aydnajimudeen.blogspot.com/Wp http://aydnajimudeen.wordpress.com/

One of the secrets that God reveals in the Qur'anis that belief and
disbelief are reflected onpeople's faces and skins. In many verses,
God informs that there is light on believers' faces, whereas there is
disgrace on disbelievers':
And you will see them brought forward to it (hell) made humble by
disgrace, looking with a stealthy glance... (Surat ash-Shura: 45)
Those who do good will have the best and more! Neither dust nor
debasement will cover their faces. They are the Companions of the
Garden, remaining in it timelessly, forever. But as for those who have
earned bad actions - a bad action will be repaidwith one the like of
it. Debasement will overshadow them. They will have no one to protect
them from God. It is as if their faces werecovered with a strip of
darkest night. Those are the Companions of the Fire, remaining in it
timelessly, forever. (Surah Yunus: 26-27)
As stated in these verses, disbelievers' faces are shadowed by
debasement. On the other hand, believers have light on their faces.God
states that they are recognised by the traces of prostration on their
faces:
Muhammad is the Messenger of God, and those who are with him are
fierce to the disbelievers, merciful to one another. You see them
bowing and prostrating, seeking God's good favour and His pleasure.
Their mark is on their faces, the traces of prostration... (Surat
al-Fath: 29)
In other verses, God informs that disbelieversand evildoers are
recognised by their faces:
The evildoers will be recognised by their mark and seized by
theirforelocks and their feet. (Surat ar-Rahman: 41)
If We wished, We would show them to you and you would know them by
their mark and know them by their ambivalent speech. God knows your
actions. (Surah Muhammad: 30)
It is a miracle and an important secret revealed in the Qur'an that,
depending on one's faith or evildoing, physical changes occur on one's
face. Spiritual feelings produce physical effects on body; although
the contour remains the same, the expression of the face changes or
the face is lightened or overshadowed. A man offaith, can, by the Will
of God, see this miracle Godperforms on people.