We owe everything to society and should be grateful to society for all that we receive from it. We have to repay this debt by helping at least as many people as we can.
Offer service and receive love. This is the recipe for experiencing Divinity. Our love should not be confined to our kith and kin. It must extend beyond the family to society as a whole, then to the nation at large and finally embrace the whole world.
Do not damage your mental peace by receiving the letter and reading the contents. Refuse to receive it. You have a chance of correcting the wrong-doers too; accept it and join the gang of mischief-makers. So be warned!