What is the main idea of forged by fire

I don't know if this is the answer you are looking for but

The theme of forged by fire is courage. Throughout the book Gerald shows a huge amount of courage in the way he handles all the obstacles he and Angel go through. Angel also shows courage by not giving up on herself, and continuing to dance. "Angel loved Gerald all the more for being her protector"

Explanation:

the arab empire adopted the muslim religion as their main belief. arabs would influence the people from the territories they invaded towards islam (the muslim belief).

nevertheless, throughout the history of the arab empire, rulers brought intellectual individuals from other religions to their centers of learning. these other foreigners included jews, christians, greeks, persians, and indians.   these resulted in the adoption of important knowledge developed by these cultures by the arabic empire. for example, the works of aristotle were translated from greek to arab and indian scientists brought the numerical concept of "zero" to the arabs.

nowadays, 93% of the arab population is muslim, which at the same time is subdivided in sects including the sunni, zaini, alawi, shia. the remaining 7% is composed mainly of christians.

what words? are you talking about to complet what sentence