Sonu, the little boy in English Class 3 Chapter 5 lesson The Yellow Butterfly, let the butterfly go because it was sad. This act of Sonu proves that he was a sensitive boy who could feel the small creature’s plight when it was held in captivity. He realised that the colourful, winged insect was unhappy for not being able to fly freely in nature, sit on flowers and suck nectar from them. So, he set it free and watched it fly away.
Lesson learnt from the chapter: Every human being should be sensitive and caring about nature and all its creations.