Why was Santiago trembling?

After the boy decided to become a shepherd to travel, his father gave him 2 things. What were those two things?

Who was Santiago preparing to meet with? 

What did people say about the Gypsies?

What is the only thing sheep always think about? 

What is Santiago?

How did the boy feel after the conversation with his father?

Where did the old woman lead the boy?

Who was Santiago in love with?

What did the old woman say to Santiago when he said that he wasn't there to get his palm read?

According to the book, what makes life more interesting?