Final answer:
The Alchemist befriends Santiago, recognizing his potential and quest for his Personal Legend, which aligns with the novel's themes rather than the Englishman's literal search for knowledge.
Step-by-step explanation:
The quote from The Alchemist speaks to the idea that within a simple grain of sand lies the vastness and complexity of creation. This symbolizes the philosophy that true wisdom and knowledge come from understanding the essence and simplicity of life.
The Alchemist chose to befriend Santiago because he recognized Santiago's unique potential and personal quest for his own Personal Legend, which is more aligned with the core message of the book than the Englishman's literal search for the Alchemist. Santiago's journey reflects the novel's themes of self-discovery and the belief that true enlightenment comes from within rather than from the external pursuit of knowledge, as sought by the Englishman.
The Alchemist sees in Santiago a person who is open to learning the language of the world and to discovering his Personal Legend, which is closely tied to the idea that the universe conspires to help us achieve our true purpose. This is why the Alchemist befriends Santiago instead of the Englishman who was looking for him. It highlights the difference between knowledge and wisdom and the importance of personal spiritual fulfillment over academic knowledge or factual learning.