the theme of the story is that greed can only grow and feed itself over and over, it knows no bounds and limits, and people need to learn to be happy with what they are given in life. Because greed also has its limits.
The underlying message of the story of the fisherman and his wife is not to be greedy. The fisherman is a kind man and he is contented with what he has but his wife Ilsebil Is a very greedy woman who wants to rule the world at her fingertips. She always wants more without hardwork.