We buy firecrackers to burn them. We prepare sweets to eat them. We give birth to children to see them die. We make money to spend it.
The futility of all this is seen by the knower of truth so he stays away from it.
Does it mean that you too should become a person, who doesn’t do anything and hide behind the garb of a sage?
Not at all!
See, you still don’t know the truth! So you can’t hide there. First know the truth then you are free to say that.
So continue to buy firecracker, make money, eat sweets and have children. Someday you might get fed up of all this! Till then continue to do what you gotta do!