وَأَمَّا حَقُّ الصَّوْمِ فَأَنْ تَعْلَمَ أَنَّهُ حِجَابٌ ضَرَبَهُ اللهُ عَلَى لِسَانِكَ وَسَمْعِكَ وبَصَرِكَ وَفَرْجِكَ وبَطْنِكَ لِيَسْتر'َكَ بهِ مِن النَّارِ وَهَكَذَا جَاءَ فِي الْحَديثِ "الصَّوْمُ جُنَّةٌ مِنَ النَّارِ" فَإنْ سَكَنَتْ أَطْرَافُـكَ فِي حَجَبَتِهَا رَجَوْتَ أَنْ تَكُونَ مَحْجُوبًا. وَإنْ أَنْتَ تَرَكْتَهَا تَضْطَرِبُ فِي حِجَابهَا وتَرْفَعُ جَنَبَاتِ الْحِجَاب فَتُطّلِعُ إلَى مَا لَيْسَ لَهَا بالنَّظْرَةِ الدَّاعِيـَةِ لِلشَّهْوَةِ وَالقُوَّةِ الْخَارِجَةِ عَنْ حَدِّ التَّقِيَّةِ للهِ لَمْ تَأمَنْ أَنْ تَخرِقَ الْحِجَابَ وَتَخرُجَ مِنْهُ. وَلا قُوَّةَ إلا باللهِ.
And the right of fasting is that You should know it is a veil, which God has set up over your tongue, your hearing and your sight, your private parts and your stomach, to protect you
from the Fire . This meaning is asserted in the tradition: "Fasting is an armor against the Fire." Thus if your parts can calm down within the veil of fasting, you have hopes of
being protected. But if you leave them agitated behind the veil and let them lift the sides of the veil, then they will look at things that are not lawful for them to look at
-that incite lust and powers that are beyond the limits of being God-fearing. It is not safe for you to break through the veil and leave it. And there is no power but in
God.