“For what profits a man if he gains the whole world but loses his own soul?”Matthew 16:26, Mark 8:36, Luke 9:25
This is a simple yet profound question.
To gain the whole world is to receive all the world has to offer—money, fame, pleasure, power, prestige, etc.
To lose our soul means to trade/ forfeit our soul by giving it to Satan and doing evil/ harm to gain the riches that the world has to offer.