Answer :
I think that Dickens meant to show that the world cant hide from laughter or good humour. If you see someone laughing you tend to laugh too. If you heart a funny joke you laugh at it. This world isnt just filled with nasty its also filled with fun.
Hope this helps but this is what i feel Dickens meant. the person grading your work may feel different
Hope this helps but this is what i feel Dickens meant. the person grading your work may feel different