"The merchant was silent for a few moments.

Then he said, "The Prophet gave us the Koran, and left us just five obligations to satisfy during our lives. The most important is to believe only in the one true God. The others are to pray five times a day, fast during Ramadan, and be charitable to the poor."

He stopped there. His eyes filled with tears as he spoke of the Prophet. He was a devout man, and, even with all his impatience, he wanted to live his life in accordance with Muslim law.

"What's the fifth obligation?" the boy asked.

"Two days ago, you said that I had never dreamed of travel," the merchant answered. "The fifth obligation of every Muslim is a pilgrimage. We are obliged, at least one in our lives, to visit the holy city of Mecca.

Mecca is a lot father away than the Pyramids. When I was young, all I wanted to do was put together enough money to start this shop. I thought that someday I'd be rich, and could go to Mecca. I began to make some money, but I could never bring myself to leave someone in charge of the shop; the crystals are delicate things. At the same time, people were passing my shop all the time, heading for Mecca. Some of them were rich pilgrims, travelling in caravans with servants and camels, but most of the people making the pilgrimage were poorer than I.

[...]

"Well why don't you go to Mecca now?" asked the boy.

"Because it's the thought of Mecca that keeps me alive. That's what helps me face these days that are all the same, these mute crystals on the shelves, and lunch and dinner at that same horrible cafe. I'm afraid that if my dream is realized, I'll have no reason to go on living.

"You dream about your sheep and the Pyramids, but you're different from me, because you want to realize your dreams. I just want to dream about Mecca. I've already imagined a thousand times crossing the desert, arriving at the Plaza of the Sacred Stone, the seven times I walk around it before allowing myself to touch it. I've already imagined the people who would be at my side, and those in front of me, and the conversations and prayers we would share. But I'm afraid that it would all be a disappointment, so I prefer just to dream about it."

-pg. 54-55 of Paulo Coelho's The Alchemist