There is no being of any kind whose inexhaustible secret treasures are not hidden within Us. But We divinely manifest these treasures by finite degrees.
وَإِنْ مِنْ شَيْءٍ إِلَّا عِنْدَنَا خَزَائِنُهُ وَمَا نُنَزِّلُهُ إِلَّا بِقَدَرٍ مَعْلُومٍ
Wa im min shai'in illaa 'indanaa khazaaa 'inuhoo wa maa nunazziluhooo illaa biqadarim ma'loom