The son begins to understand that the world deprives him of the love, of the peace, of the truth that the son thought he would find, he asks himself more insistent, clearer questions, such as who he is, who I am, what this life really is, who we really are, asks questions, does not find the answers, seeks, wanders, fails to arrive at what truly satisfies him, begins to understand that the world does not make him happy, he discovers that he cannot rely on the world, on things of the world, he does not feel at peace, he seeks something that guarantees peace, love, that makes him secure, and desires balance. 
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Above all love
A hidden inheritance
Relative arguments