Final answer:
Santiago teaches the crystal merchant the value of pursuing personal dreams.
Step-by-step explanation:
The lessons that Santiago teaches the crystal merchant on page 60 of 'The Alchemist' are the value of pursuing personal dreams. Throughout the novel, Santiago encourages the crystal merchant to pursue his long-lost dream of visiting Mecca. Santiago explains that by pursuing his own dream of finding his Personal Legend, he inspired the crystal merchant to remember and pursue his own dream.