Coal and Diamond
Both are essentially made of carbon atoms. What is interesting is how diamond is created after going through heat and pressure, whereas coal is more common and simpler in chemical structure. Similarly, don’t be afraid of the dark times in your life – the suffering and the pressure.
It could be what turns you into a diamond.
Verily in all Allah has created, in the heavens and the earth, are signs for a people who reflect (10.6)