Such drifting away from the faith can happen before we realize it. We can avoid having this experience by paying “more than the usual attention ” during our consideration of spiritual truths.
لِذلِكَ يَحْسُنُ بِكُلٍّ مِنَّا أَنْ يَسْأَلَ نَفْسَهُ :‏ ‹ هَلْ أَنَا مُكْتَفٍ بِمَعْرِفَةِ ٱلْمَبَادِئِ ٱلْأَوَّلِيَّةِ ؟‏