Answer:
The black and white stones made him feel better after he got robbed in Tangiers.
Step-by-step explanation:
The protagonist of the story "The Alchemist" by Paulo Coelho is a young boy named Santiago who had dreamed of a treasure. And in his efforts to get the said treasure, he traveled to places outside of his own village. One such place was Tangiers, a city in northern Morocco.
There, not knowing anyone, he met a boy about his own age and decided to trust him as his guide. But as luck would have been, he was instead robbed of all his money. Dejected and feeling frustrated, he cried, thinking of ways on how to return home. When checking if he happen to have anything in his bag, he saw the two stones given to him by the old man in his bag. He resolved to be more careful the next time and not trust anyone anymore. The only thing that 'thief' friend taught him was that this port place is full of thieves. The black and white stones were Urim and Thummim, stones that give omens which will help the boy in the future too.