Just like Mona in the movie, he loves mathematics under the influence of his father. Seeing Mr. Jones' obsession with numbers, he thinks that his and his father's fate must be implied by a certain number, so he has been struggling to find the number that determines their fate. .
There are no symbols of destiny in life, there is only an illusion of being directed by our brains associating something happening with some otherwise meaningless symbol. Mr. Jones finally told Mona that he was just doing numbers as a hobby. He chose the numbers he liked according to his mood, not numbers that guided his life. Mona is no longer looking for symbols of destiny, and she has come out of the mental predicament of thinking she needs to sacrifice what she loves in order to be with her family.
Don't look for the symbols of your own destiny, just follow the guidance of your heart; find what you love most, and don't sacrifice it for anything.
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