Fight the Qaroon Inside

Ustadh Nouman Ali Khan divulges some details on a person who was from the nation of Musa AS by the name Qaroon. He was the cousin or distant relative of Musa AS. He was the slave of the Israelites but sort of a spy for the government of the time. He was immensely rich due to his profession and had huge vaults to carry his riches. His people who meant well for him advised him not to get sucked in this facade and to stop being delusional. They wanted him to stay away from false luxuries and see through it and not to turn to fake happiness. We should pursue the next life with whatever is given in this life. What does this encrypted statement mean? Listen intently to unravel the mystery.