In The Name of Allaah, The Most Merciful, The Bestower of Mercy.
Allaah [The Most High] said:
مَثَلُهُمۡ كَمَثَلِ ٱلَّذِى ٱسۡتَوۡقَدَ نَارً۬ا فَلَمَّآ أَضَآءَتۡ مَا حَوۡلَهُ ۥ ذَهَبَ ٱللَّهُ بِنُورِهِمۡ وَتَرَكَهُمۡ فِى ظُلُمَـٰتٍ۬ لَّا يُبۡصِرُونَ
Their likeness is as the likeness of one who kindled a fire; then, when it lighted all around him, Allah took away their light and left them in darkness. (So) they could not see.” [2:17]
Allaah [The Most High] informed us about the state of affairs of the hypocrites with regards to their share of the revelation and that their state is that of one who kindled a fire, in order to be given light and benefited – because they enter into Islaam and are given light by way of it; benefiting from it, receive safety and keep the company of the Muslims. However, when it is the case that their companionship with the Muslims is not based on the light of Islaam in their hearts, it ceased and Allaah took away their light. And Allaah [The Most High] did not say: ‘’Allaah took away their fire” because fire contains both light and flames; rather Allaah took away the light from the fire and left them with the flames and darkness, so they could not see. This is the state of the person who could see guidance but then became blind in misguidance; the one who knew [the truth] but then rejected it and the one who entered Islaam and then separated his heart from it, so he does not return. And that is why Allaah [The Most High] said: [فَهُمۡ لَا يَرۡجِعُونَ- So they return not (to the Right Path)]. [An Excerpt from (I’laam Al-Muwaqqi’een 1/200-201) slightly paraphrased]