Since Jerusalem ​ — “the city ” — ​ is symbolic of heavenly Jerusalem,“ the mountain of the olive trees, which is in front of Jerusalem, ” must also be taken symbolically.
بِمَا أَنَّ ‹ مَدِينَةَ › أُورُشَلِيمَ فِي نُبُوَّةِ زَكَرِيَّا هِيَ رَمْزِيَّةٌ ،‏ فَإِنَّ « جَبَلَ ٱلزَّيْتُونِ ،‏ ٱلَّذِي قُبَالَةَ أُورُشَلِيمَ » هُوَ رَمْزِيٌّ أَيْضًا .‏