How Does Santiago Change In The Alchemist

In the book The Alchemist by Paul Coelho, a boy named Santiago decides to follow his recurring dream to find a treasure. Throughout his journey, he meets several people that change and teach him lessons that help him on his journey. The most prominent people he meets on his quest show him the importance of following his dreams.
To begin with, Santiago meets and begins to work for crystal merchant. First of all, Santiago learns about the merchants dream and religious obligation, to make a trip to Mecca. The merchant wants to live off his dream instead of making it come true. Santiago understands but sees that that is not what he wants to do. Next, Santiago sees that while change is useful, it is important to be yourself. He is filled with

many ideas to expand the crystal merchant’s store, but the merchant is always reluctant. After working for the merchant for many months and forgetting about his dream, Santiago is reminded of why he is there in the first place. He notices people and things that lead him to say goodbye to the merchant and continue the quest.
After traveling in a large group to Egypt, he meets a girl named Fatima while at an oasis. He immediately falls in love with her. They both share feelings for each other, and Santiago almost decides to forget his journey. She convinces him to continue his journey after telling him about how the women where she lives wait for their partners. She is content with waiting any amount of time as long as he fulfills or tries to fulfill his destiny.
Finally, Santiago meets the alchemist. To start, he shows Santiago that through pain and work, he can be happier and more successful than living life happy his whole life. Santiago continues to have doubts about leaving Fatima, but the alchemist tells him of his future and that he will feel incomplete for the rest of his life if he does not try. He also teaches him that he can do the impossible. By speaking to the sand, the wind, and the sun, he defies nature and manages to turn into the wind. Finally, the alchemist teaches Santiago one of the most important lessons, to follow his heart. His heart leads him to a spot near the pyramids, and to people who unknowingly reveal the true location of the treasure.
Only people had the capability to teach Santiago to importance of dreams, and in essence the secret of life.