Indeed, much about how we develop remains unknown to man. What, for example, activated specific genes in your cells to set in motion the process of differentiation?
وَهذَا ٱلنُّمُوُّ ٱلْمُدْهِشُ حَدَثَ دَاخِلَ رَحِمِ أُمِّكَ « فِي ٱلْخَفَاءِ » ،‏ أَيْ بِمَنْأًى عَنْ أَنْظَارِ ٱلنَّاسِ ،‏ كَمَا لَوْ أَنَّهُ فِي أَعْمَاقِ ٱلْأَرْضِ .‏