Surah 17. Al-Israa, Ayah 45

This passage connects with verse {41} above.

Veil invisible: Some Commentators understand mastur here as equivalent to satir: a veil that makes invisible, a thick or dark veil. But I think that the meaning of mastur (in the passive voice) as "hidden or invisible" is more consonant with the whole passage. If all nature, external and within ourselves, declares Allah's glory, those unfortunate who cut themselves off from their better nature are isolated from the true servants of Allah and the revelation of Allah, because (1) they are unfit for being in their company, and (2) because the servants of Allah and the revelation of Allah must be protected from the pain which blasphemy or rebellion must cause to their unsullied nature. The veil is none the less real even though it is invisible.