When the boy tells the merchant that he is going to be leaving to return to his country to buy sheep, he asks for the merchant's blessing. What does the merchant say about the boy's journey home?

From the text:

"I am proud of you," he said. "You brought a new feeling into my crystal shop. But you know that I'm not going to go to Mecca. Just as you know that you're not going to buy your sheep."
"Who told you that?" asked the boy, startled.
" Maktub " said the old crystal merchant.
And he gave the boy his blessing.