In the book "The Alchemist" Santiago has missed his sheep. However, he realizes that bad things happen such as his sword being stolen but he is now an adventurer and that the adventure is important.
Later he observes two work men talking. One speaks Spanish and the other speaks Arabic. They don't speak the same language but they are unable to understand each other. He realizes that there are languages that can be understood between people. He starts trying to learn to read the omens.
I believe the third thing that he realizes is that he can make his won destiny.