the *Id ul Adha is the highest feast in Islam. it reminds the muslims to good old Ibrahim when he was tested by God. Ibrahim was told to slaughter his son Ismail to prove his veracity but in the end he was offered, that this was only a test. God made clear, that no human oblation will ever be accepted.
so congrats to all muslims, *Id mubarak and salam.
(asks one sheep the other: "do u believe in a life after *Id ul Adha?" )