﴿ حَتَّىٰٓ إِذَا بَلَغَ بَيْنَ ٱلسَّدَّيْنِ وَجَدَ مِن دُونِهِمَا قَوْمًۭا لَّا يَكَادُونَ يَفْقَهُونَ قَوْلًۭا ﴾

“[And he marched on] till, when he reached [a place] between the two mountain-barriers, he found beneath them a people who could scarcely understand a word [of his language].”

until, when he reached between the two barriers, that is, the two engendered existences - that was his rank and original station, between the two sides of the two mountains of God; the marching east and west represent two journeys, one a descent and one an ascent - he found on this side of them a folk, namely, the natural faculties, the corporeal and the external sensoria, that could scarcely comprehend speech, on account of their being unable to perceive meanings or utter them.