where can I find text to justify fate in the alchemist

At a certain point in our lives, we lose control of what's happening to us, and our lives become controlled by fate. That's the world's greatest lie."

The Alchemist/Old man claiming to be King of Salem, to Santiago.

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The boy didn't know how to tell a person's destiny or what it was...

"It's what you have always wanted to accomplish. Everyone, when they are young, knows what their destiny is. At that point in their lives, everything is clear and everything is possible. They are not afraid to dream, and to yearn for everything they would like to see happen to them in their lives. But, as time passes, a mysterious force begins to convince them that it will be impossible for them to realize their destiny... It's a force that appears to be negative, but actually shows you how to realize your destiny. It prepares your spirit and you will, because there is one great truth on this planet: whoever you are, or whatever it is that you do, when you really want something, it's because that desire originated in the soul of the universe. It's your mission on earth."

The Alchemist/ Old king to Santiago.

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The Soul of the World is nourished by people's happiness. And also by unhappiness, envy, and jealousy. To realize one's destiny is a person's only real obligation.

The Alchemist/Old king to Santiago.