The Quote:
“Tell your heart that the fear of suffering is worse than the suffering itself. And that no heart has ever suffered when it goes in search of its dreams." Said the Alchemist to Santiago (P.130)
I'll explain it for a little bit:
Santiago left everything he ever had to go search for the treasure with the alchemist. He had a good life in the oasis. He had gold, a girl and he became counselor of the oases. And so he told the alchemist "My heart is afraid that it will have to suffer." He was afraid that he may not return and that he may have made a mistake leaving a good life behind and searching for something that is so far fictional.
I found it interesting because I agree with the quote. Fear is the real enemy as Walter White said in Breaking Bad. Also when you follow your dream, even though you may come against some hurdles, the reward will make you forget about all the hurdles you faced.