وَهُوَ الَّذِي مَرَجَ الْبَحْرَيْنِ هَذَا عَذْبٌ فُرَاتٌ وَهَذَا مِلْحٌ أُجَاجٌ وَجَعَلَ بَيْنَهُمَا بَرْزَخًا وَحِجْرًا مَّحْجُورًا
It is He who merged the two seas: this one sweet and agreeable, and that one briny and bitter, and between the two He set a barrier and a forbidding hindrance.
Agha Ali Puya Commentary
Commentary on Quran 25:53
[Pooya/Ali Commentary 25:53] Barzakh is used here as in verse 100 of Al Muminun - a barrier between two extremes. Aqa Mahdi Puya says: It may also refer to the spiritual and the physical or good and bad currents or courses in the process of existence with a distinguished medium (a barrier) between them which prevents the mixing or intermingling of the two.