Surah 6. Al-An'am, Ayah 126

Lit., "and this thy Sustainer's way is straight" - i.e., unchanging in its application of the law of cause and effect to man's inner life as well. - The term rijs occurring in the preceding sentence, and rendered by me as "horror", signifies anything that is intrinsically loathsome, horrible or abominable; in this case, it would seem to denote that awesome feeling of utter futility which, sooner or later, overcomes everyone who does not believe that life has meaning and purpose.