If you thinking of doing a start up or a student or any other person who is struggling with the problems, then let me tell you nothing is permanent and this book is the perfect example for that. You should read it for inspiration, courage and to change how you act in daily life.
take a example some kind of happiness arrives to your life it could be anything anything you like but slowly slowly with time time you would realise that, Hey! something is not right, u start feeling that happiness is going away from you and thats true because nothing is permanent then suddenly there is a transition to bad time or hard time, then what do you do you dont try to get out of the problem you keep saying that, I was so happy, I want it back but you dont want to go anywhere else to search happiness bcoz you dont want to change the way you are living right now. But trust me when you will get the tendency to change from happiness to sadness and again sadness to happiness.
All the stuff I said above is depicted in this book where two mouse and two elf lived in a maze(metaphor for life where you search happiness) and happiness for them is finding the reserves of cheese. The mouse are the smart ones in the story who have the tendency to change and the elf are the one who dont want to change. One day both of the group finds reserves the cheese in the maize, the elf get so happy that they dont think that one day this will vanish, but the mouse knew this so they were prepared for change and move ahead to find another reserve of cheese when this will run out of cheese. Then the mouse realise that the cheese is vanishing we should move forward but the elf stays at the same place and wait for the cheese to come to them. This tendency of not changing even splits up the two elf(s) because one of them wanted to change and the other wanted to go ahead to find cheese, Haw(Name of one of the elf) moves forward and after searching for a long time he finally founds the cheese.