" They continued across the desert. With every day that passed, the boy's heart became more and more silent. It no longer wanted to know about things of the past or future; it was content simply to contemplate the desert, and to drink with the boy from the Soul of the World. The boy and his heart had become friends, and neither was capable now of betraying the other" (Coelho 134).
The desert is place of learning from yourself and others. In the Bible, the nation of Israel was thought by God in the desert, and from the desert they learned who they are and what they will be. With Santiago, it's the same. In the beginning of the novel, Santiago was a hard hearted sheperd who trusted no one and did nothing. Now through his journey, he is the desert and that's where his heart is most content. The desert symbolized a tribulation we go through life to conquer what is our- Happiness.